I search the string (starting rightmost) for the first character in the range 1 to 9 (ASCII value 49-57) then null (set to 0) each char right of it - see below: What about something like this (might have rounding errors and negative-value issues that need debugging, left as an exercise for the reader): It's slightly programmatic but at least it doesn't make you do any string manipulation. -Allen Thompson. It doesn't necessarily look like that in the proportional font used for the regular text in the description, but if you copy the test cases to a text editor that uses a fixed width font, like Courier, you'll see there are four spaces between the 12.3 and the 60: one space for each of the three zeros removed and one that was originally there. imgS = Hi Here's a C99 solution: Note that the characters used for digits and the decimal separator depend on the current locale. Example Code Live Demo The question was about creating one format string that omits trailing zeros, not to have different format strings for each case. ), you can multiply it first. You should always provide a format precision that is "wide enough" (default is only 6) and round the value. 1. Sorry for the basic question, I just started learning C. How do I get rid of the extra three zeros at the end of my Batting Average? Want to improve this question? Is uninitialized local variable the fastest random number generator? Unless alternative representation is requested the trailing zeros are RSS Feed. ", only one placement of EOS. The closest you could get would be: printf ("%.6g", 359.013); // 359.013 printf ("%.6g", 359.01); // 359.01 but the ".6" is the total numeric width so printf ("%.6g", 3.01357); // 3.01357 breaks it. It is not currently accepting answers. The 60 in the original was to test, and show, that trailing zeros are not stripped from integers that have zero or a string of zeros all the way to the end. Get decimal portion of a number with JavaScript. Should I trust my own thoughts when studying philosophy? For more information, please see our It doesn't necessarily look like that in the proportional font used for the regular text in the description, but if you copy the test cases to a text editor that uses a fixed width font, like Courier, you'll see there are four spaces between the 12.3 and the 60: one space for each of the three zeros removed and one that was originally there. Using too many digits may trigger unexpected results for example "%.20g" with 0.1 will display garbage. you need truncation in display or in value? Using String Erase Function Count trailing zeros. http://www.cplusplus.com/reference/iostream/ios_base/precision/, http://www.cplusplus.com/reference/iostream/manipulators/setw/, http://www.cplusplus.com/reference/iostream/manipulators/setfill/, http://www.cplusplus.com/reference/iostream/manipulators/left/, http://www.cplusplus.com/reference/clibrary/ctime/strftime/. If you wanted -93 instead you would use trunc(), Trailing zeros on output of a numeric item depends on which "format" you currently have in effect, and sometimes also on the other values being displayed. When it comes to the final rounding to cut a Hello, Remove Duplicate/Repeated words from String, Remove all consecutive duplicates from a string using STL in C++, Remove duplicates from a string using STL in C++, Remove odd frequency characters from the string, std::string::length, std::string::capacity, std::string::size in C++ STL, Remove comments from a given C/C++ program, Difference between std::remove and vector::erase for vectors, list::remove() and list::remove_if() in C++ STL, A-143, 9th Floor, Sovereign Corporate Tower, Sector-136, Noida, Uttar Pradesh - 201305, We use cookies to ensure you have the best browsing experience on our website. For example, is going to display trailing zeroes on the 0. A function like this: Improve INSERT-per-second performance of SQLite. In C does not define any fixed-point types, but it's not hard to implement them.) In this tutorial, we went over the steps to remove zeros in float in Python. Note, this answer assumes that the decimal place is. CPP #include <iostream> using namespace std; string removeZero (string str) { int i = 0; while (str [i] == '0') i++; str.erase (0, i); return str; } int main () Hey guys, Does the policy change for AI-generated content affect users who (want to) How do I parse a string to a float or int? In July 2022, did China have more nuclear weapons than Domino's Pizza locations. Join Bytes to post your question to a community of 472,353 software developers and data experts. In this tutorial, we will go over the steps to remove zeros in float in Python. The parseFloat() method parses the given string and returns a floating point number without trailing zeros. Although I think I will try your solution and come back after I test . I just found this out. Use the string erase function to remove characters equal to the above count. Reddit, Inc. 2023. Floating point inexactness really means you should do the rounding yourself. Is there a reliable way to check if a trigger being fired was the result of a DML action from another *specific* trigger? Please start a new discussion. I keep stumbling on the format specifiers for the printf() family of functions. Like this article? one: Use the string erase function to remove characters equal to the above count. The trailing zeros are only kept if you set either fixed or scientific mode. Which fighter jet is this, based on the silhouette? Is there any evidence suggesting or refuting that Russian officials knowingly lied that Russia was not going to attack Ukraine? It still has potential for overflow, so be careful ;P. I would say you should use %9.3f means that it will try to align with a total width of 9 characters (including the decimal point and the fractional component . =/. #, May 15 '06 I like the answer of R. slightly tweaked: Ok, this answer was edited a few times and I lost track what I was thinking a few years back (and originally it did not fill all the criteria). The method also has an option skip_zeroes. See your article appearing on the GeeksforGeeks main page and help other Geeks. How to create a Minimal, Complete, and Verifiable example, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. To learn more, see our tips on writing great answers. I have been trying to connect to a local host using php curl. acceptable rounding practices in banking. Not exactly equivalent to your code, but maybe it will be good enough for your use. Want to improve this question? Based on your location, we recommend that you select: . Maybe this solution is dumb too, but it works :D. Please start posting anonymously - your entry will be published after you log in or create a new account. rev2023.6.2.43474. Thanks for contributing an answer to Stack Overflow! maximum number of decimals behind the zero is fixed, works (now) also when first decimal is zero. Don't have to recite korbanot at mincha? Your known bugs are the same that printf() itself has, so no problems there. The "format short g" statement does not affect calculations at all: it only affects displaying of data. Applications of maximal surfaces in Lorentz spaces. The toFixed() method returns a string representation of the number with the specified decimals. What I want is to be able to print a double (or float) with a maximum given number of digits after the decimal point. How To Remove Blank Rows In Excel Using Python. Please write comments if you find anything incorrect, or if you want to share more information about the topic discussed above. Can I also say: 'ich tut mir leid' instead of 'es tut mir leid'? With its simplicity, versatility, and robustness, Python Rounding Float in C and Remove those Zeros, http://www.physics.ohio-state.edu/~dpoint_math.pdf, http://groups.google.com/group/comp.a116e9c14faab5. Convert the float to a string using the str() function. Closed 6 years ago. The code above assumes a C or US English locale. The default floating point formatting mode (if you don't explicitly set one) does not keep the trailing zeros. We can simply use this method to convert our string to an integer value which will remove the leading zeros. How can I force division to be floating point? Other MathWorks country sites are not optimized for visits from your location. The subreddit for the C programming language. I have a 32 bit intel and 64 bit AMD machine. Join our open community on Discord to learn programming, SEO, and marketing, Mastering Python: A Versatile Programming Language for All. There is a workaround: convert to a string, search for dot character, get the size and append manually zeroes as needed. Sample size calculation with no reference. I have : consider buying me a coffee ($5) or two ($10). Connect and share knowledge within a single location that is structured and easy to search. and LinkedIn. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Should convert 'k' and 't' sounds to 'g' and 'd' sounds when they follow 's' in a word for pronunciation? Known bugs: Possible buffer overflow depending on format. Agreed - it would only need a couple of lines of code to trim the trailing zeroes and decimal. I have a float formatted to 2 decimal places. *f" format in printf(). This function will convert trailing zeros in a string or character vector, including multiple numbers: for use with character strings produced by sprintf. This is wrong because there are cases where %g will produce scientific notation. Remove floating useless 0 in C [closed] Ask Question Asked 6 years ago Modified 6 years ago Viewed 6k times -3 Closed. floor rounds to negative infinity. So here is a new version (that fills all criteria and handles negative numbers correctly): Unfortunately this answer is a two-liner as sprintf does not return the string. How to nicely format floating numbers to string without unnecessary decimal 0's. The test harness main() shows this in action: Once you have the correctly rounded value, you can once again pass that to morphNumericString() to remove trailing zeros by simply changing: (or calling morphNumericString at the end of nDecimals but, in that case, I'd probably just combine the two into one function), and you end up with: To get rid of the trailing zeros, you should use the "%g" format: After the question was clarified a bit, that suppressing zeros is not the only thing that was asked, but limiting the output to three decimal places was required as well. How can I shave a sheet of plywood into a wedge shim? MathWorks is the leading developer of mathematical computing software for engineers and scientists. Improve this question "osmium" writes: In article Keith Thompson writes: Is there a script that will round off a number to a certain number of Sometimes, when working with floats, you may need to remove trailing zeros from them. I need to incorporate http to https redirect with a reverse proxy. No. float f = 36.09999999; If you want to specify the minimum width to keep fields aligned, increment as necessary, for example: You could also convert that to a function where you pass the desired width of the field: I found problems in some of the solutions posted. I have configured the DSN connection using the server, port, database, and Hi, You will be notified via email once the article is available for improvement. How does TeX know whether to eat this space if its catcode is about to change? @modoran I disagree with the advice. Cookie Notice Does any body know, how to round a double value with a specific number Cutting unnecessary zeroes in float numbers, Creative Commons Attribution Share Alike 3.0. You can remove the trailing zero by using floor. @Tarek accept the answer if you find it satisfactory. Would a revenue share voucher be a "security"? . Here is the function You can't remove trailing zeros on a float because the concept of "trailing zeros" only has meaning when you represent a float as a string. To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page. Is there a reason why your code is leaving a variable number of blanks after the last entry even when no blanks originally occurred there? You're sure you're not confusing all this with fixed-point arithmetic? If you want to retain some value behind the point (. the errors Hi! In article <4c*************@individual.net> "osmium" writes: "Vladimir Oka" wrote, May 13 '06 Unable to complete the action because of changes made to the page. Beware numbers like 1000000000000042.0000, though. If you need to set a specific number of decimal places, use the toFixed() method. Find centralized, trusted content and collaborate around the technologies you use most. What maths knowledge is required for a lab-based (molecular and cell biology) PhD? By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use. Does a knockout punch always carry the risk of killing the receiver? write about modern JavaScript, Node.js, Spring Boot, core Java, RESTful APIs, and all things 2nd one does not compile--test your code before posting please. It has two components the integer component and the decimal component. Find centralized, trusted content and collaborate around the technologies you use most. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. sprintf(cf,"%0.03lf", f); Got a tip for us? We then use re.sub() to replace trailing zeros and the decimal point if there are no significant digits after it. floor(-93.93) would be -94. The whole reason for this is that sprintf can be used rather than fprintf, then use this to transform the result, so that a simple fprintf('%s', result) can be used to keep decimal points aligned in a table of results. We define a function remove_zeros that takes a float and returns a float. But if i use this function on integer it shows float number. All rights reserved. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Why doesnt SpaceX sell Raptor engines commercially? Please show the code so we can give you suggestions. stoi() function in C++ is used to convert the given string into an integer value. You just need to analyse the number before-hand to dynamically create the widths, then use those to turn the number into a string: The whole point of nDecimals() in this case is to correctly work out the field widths, then format the number using a format string based on that. I think I only half read the original question: the keeping the trailing zeroes of an outputted double. The regular expression we use is explained below: Finally, we convert the resulting string back to a float using the float() function and return it. I think it automatically rounds 4.20 to 4.2 because the zero really isn't necessary. Optionally, add a test of how large this integer is if you still want to put large integers in scientific notation. Thank you for your valuable feedback! Formatting floats in Python without superfluous zeros; Made by the cabbage addicts from the Python room on Stack Overflow.. Using regular expressions, remove trailing zeros and the decimal point if there are no significant digits after it. You can also select a web site from the following list. part is left. You can also subscribe to So 60.0 would become 60 ? We used regular expressions to replace trailing zeros and the decimal point if there are no significant digits after it. Having a wide range of different inputs to test is good when you are adjusting your function. Division keeps rounding down to 0? #, May 12 '06 Use the %g token if you want to remove all trailing zeroes from some floating point.%.3f or %.3lf if you want to set it to a fixed decimal precision (width) of 3 for float (f) or double (lf).. You can also add one before the . I want to be able to specify a maximum number of digits after the decimal point. Basic concepts of WebLogic Admin training? Is there a routine to find a integer base? In the font that the description appears in, spaces take up less room than other characters, but every removed character has been replaced by a space, so the length of the output matches that of the input and the decimal points are in the same position for alignment in a column of output. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Some of the highly voted solutions suggest the %g conversion specifier of printf. Other solutions use math to print the desired number of decimal digits. Failed test cases: 1.012 with formatter "%.2g" will result in 1.012 instead of 1.01. It seems to work for me. Help me to improve it. Below is C++ implementation. Starting to search end of string (EOS) after the ". Reload the page to see its updated state. #include Hi I'm very much a beginner with Python. May 12 '06 This question needs details or clarity. I started this blog as a place to share everything I have learned in the last decade. "How can I round a number to x decimal places" ? Aside from humanoid, what other body builds would be viable for an (intelligence wise) human-like sentient species? Which comes first: CI/CD or microservices? Annoyingly, the %f specifier will only print to a fixed precision, so it will add trailing zeros to all numbers that don't reach that precision. My problem (spelled failure) is with the At BluePanda Dev, we're passionate about building high-quality software and sharing our knowledge with the community. Also, maybe introduce a function for your tests instead of copying the three lines of code many times? You can use the parseFloat() method to remove trailing zeros from a number in JavaScript. Why is the Size of an Empty Class Not Zero in C++? Accelerating the pace of engineering and science. I have function, which shows a float number with comma instead of dot. I needed that and the first answer from paxdiablo does the trick. Is it bigamy to marry someone to whom you are already married? removed, also the decimal point character is removed if no fractional I need to eliminate the 2nd decimal place if it's a "0" but still keep 2 decimal places open for when its 2 whole numbers. HOW CAN I CREATE AN AI with an .executable file that would suck all files in the folder and on my computer, How do I view Redshift db tables in Alteryx. I think the easiest solution is to use sprintf with the %f conversion specifier and to manually remove trailing zeros and possibly a decimal point from the result. Asking for help, clarification, or responding to other answers. 0.00005 and 3 decimals will yield "0" which may or may not be desired. How much of the power drawn by a chip turns into heat? My idea is to calculate the required precision that would not result in trailing zeroes for a given double value and pass it to the "%1. Follow me on char cf; If I use: This can't be done with the normal printf format specifiers. If "." Privacy Policy. HR RBI\n"); printf("======================================\n"); How to remove extra zeros from the end of my numbers? @Jeroen: I think the floats fail also at some point when numbers get bigger but basically typecasting to long, long long or int64 should work. 1 Cutting unnecessary zeroes in float numbers float integer asked 9 years ago 4uTeP 23 1 1 5 updated 9 years ago Hello. Some have suggested the %g specifier, which works for a set of numbers, but it will switch to scientific notation for some numbers, like this: printf ("%g", 1000000.0); // prints 1e+06. I would propose the following Thanks and sorry for dumb english and question :D. Or, instead of round, you could use python's string formatter. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. I need help to find a 'which way' style book. You can suggest the changes for now and it will be under the articles discussion tab. There is actually a minor typo here - p = strchr (str,'. Is there a place where adultery is a crime? The above answer will preserve the zero in some situations so you could still return 2.00 for example {Binding yourDecimal, StringFormat='#,0.#####'} If you want to remove ALL trailing zeros, adjust accordingly. Choose a web site to get translated content where available and see local events and offers. It does not work correctly for negative values > 1, for example 0.12345 (casting to int loses the minus sign). Select the China site (in Chinese or English) for best site performance. '); should actually be p = strchr (s,'. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Here is the function, So, when i use \sagedot{3} it shows 3.0 instead of 3. If you need to set a specific number of decimal places, use the toFixed() method. Take a variant of R and Juha's answer (which don't quite handle the trailing zeroes), and fix it up. This can even be done as one-liner: And here is another %g solution. Let us know. Start with a (python's integer division Vs Sage's exact fractions), Decrease accuracy for floats (decrease decimal places reported), Cannot convert int to sage.rings.integer.Integer, Matrix conjugacy classes over Z and ideal classes, solve gives 1, 2, or 3 answers depending if one value in my equation is a real, rational, or integer. I will be highly grateful to you . As you can see above, the toFixed() method rounds the number if required and pads the fractional part with zeros if the specified decimal places are more than the number has. The parseFloat() method parses the given string and returns a floating point number without trailing zeros. of digits after the decimal points? In the realm of programming languages, Python has emerged as a powerhouse. easy-to-follow tutorials, and other stuff I think you'd enjoy! error in the 8th digit. to set the preferred total width; e.g. solution It works great. How can I remove the zeros that will not affect the number value, sometimes if the X1 was a number without a decimal it will be X1=4.0000 We also provided a code example that you can use in your own projects. How to make a HUE colour node with cycling colours. WebLogic Admin Training is a specialized program designed to equip individuals with the skills and knowledge Am having a bit of a time with URL Rewrite. Add special cases as needed. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Float is a data type in Python that represents floating point numbers. I Why are mountain bike tires rated for so much lower pressure than road bikes? There is a much easier and more direct way to do it: use manipulators. https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#answer_232896, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#comment_387429, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#answer_232899, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#comment_387430, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#answer_379489, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#comment_1218395, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#answer_1016355, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#comment_2287650, https://www.mathworks.com/matlabcentral/answers/301055-how-to-remove-trailing-zeros-while-display-any-floting-number#comment_2287705. We then converted the resulting string back to a float. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. If you're not happy with the truncation aspect (which would turn 0.12399 into 0.123 rather than rounding it to 0.124), you can actually use the rounding facilities already provided by printf. Anonymous form By using our site, you Making statements based on opinion; back them up with references or personal experience. The newsletter is sent every week and includes early access to clear, concise, and realS = float(-1.25e-5) Add details and clarify the problem by editing this post. I'm wondering whether there's an easy way to remove unnecessary This doesn't actually seem to trim trailing zeroes, though? How can I define top vertical gap for wrapfigure? '); To use the function param rather than the global var. I think this is a nice way to do it: Your code rounds to three decimal places due to the ".3" before the f. Thus if you the second line rounded to two decimal places, you should change it to this: That code will output your desired results: *Note this is assuming you already have it printing on separate lines, if not then the following will prevent it from printing on the same line: The Following program source code was my test for this answer. Below is C++ implementation. How to deal with floating point number precision in JavaScript? I'm not sure there's a workaround to that. But I was looking for a format string that allowed me doing what I wanted, not a programmatic solution, which is what I already have. Unfortunately because of the algorithm we use, As in the 22.0000, the decimal point is being stripped as well, so 60.0 would become 60. web development. How to show errors in nested JSON in a REST API? At the beginning of your function, add a line to test if x is integer. There is a workaround: convert to a string, search for dot character, get the size and append manually zeroes as needed. Convert the string back to a float using the float() function. Is it possible for rockets to exist in a world that is only in the early stages of developing jet aircraft? Optionally, you can also test whether x is a floating-point number equal to zero, in which case you might not want to put it in scientific notation. We start by importing the regular expressions module re. Using regular expressions, remove trailing zeros and the decimal point if there are no significant digits after it. Hello. Connect and share knowledge within a single location that is structured and easy to search. PHP Curl Not wanting to connect to localhost. How can I repair this rotted fence post with footing below ground? This article is being improved by another user right now. Your value remains a float in your project. I have a Redshift database that I need to use as an import data source. Is there liablility if Alice scares Bob and Bob damages something? There is a rounding Lets assume all calculations are done with decimal data types so things "Vladimir Oka" writes: I > think (before looking into the Standard) that all small integers are guaranteed to be. and our Also, maybe make "3" a parameter for the convenience of others? But I was not needing truncating and the version below is maybe slightly faster? mi. Citing my unpublished master's thesis in the article that builds on top of it. When I do : Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. #. def celciusToFahrenheit(tc): Blockchain technology has emerged as a transformative force in the business world, offering unprecedented opportunities for innovation and What is WebLogic Admin Training? Did an AI-enabled drone attack the human operator in a simulation environment? Is there a reliable way to check if a trigger being fired was the result of a DML action from another *specific* trigger? Here's the code: 1 2 3 4 5 6 import re def remove_zeros(num: float) -> float: num_str = str(num) rev2023.6.2.43474. Author want style 'f' not style 'e'. Difference between letting yeast dough rise cold and slowly or warm and quickly. a. What maths knowledge is required for a lab-based (molecular and cell biology) PhD? What are some symptoms that could tell me that my simulation is not running properly? Given a string of digits, remove leading zeros from it. You can then apply the method str with the option no_sci=False to make sure to get a scientific notation regardless of the size of x. Add details and clarify the problem by editing this post. What you need to do if you don't want to surprise the users is start from say 15 digits and keep incrementing until, @6502, that's because there's no such thing as 0.1 in IEEE754 :-) However, it won't cause a problem (at least for that value) since the resultant, @paxdiablo: There's no need to dynamically create a format string for, @Tomalak: This does not do what I want. I have a length converter which converts mm, cm, m, km, ft, yd, in and By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. You may receive emails, depending on your. Hi Does the policy change for AI-generated content affect users who (want to) Print float/double without trailing zeros? Delete an element from a Map in JavaScript, Get the first element of a Map in JavaScript, Get an element from a Map using JavaScript, Update an element in a Map using JavaScript. time. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Data Structures & Algorithms in JavaScript, Data Structure & Algorithm-Self Paced(C++/JAVA), Full Stack Development with React & Node JS(Live), Android App Development with Kotlin(Live), Python Backend Development with Django(Live), DevOps Engineering - Planning to Production, GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam, Types of Models in Object Oriented Modeling and Design, Difference Between Structure and Class in C++. I put this together based on answers above. The initial zeros are removed. The code replaces each zero stripped with a space. In this article, we will use two string functions i.e, string erase and stoi() to remove leading zeros from the string. Complexity of |a| < |b| for ordinal notations? Some interesting facts about static member functions in C++, Initialize a vector in C++ (7 different ways), Map in C++ Standard Template Library (STL). #. The default floating point formatting mode (if you don't explicitly set one) does not keep the trailing zeros. All rights reserved. A simple solution but it gets the job done, assigns a known length and precision and avoids the chance of going exponential format (which is a risk when you use %g): Add or remove "elses" if you want a max of 2 decimals; 4 decimals; etc. The 22.0000 has five spaces after it in the result: one for the decimal point that's been removed and four for the four zeros removed. I will check later. Dec 18, 2011 at 2:59am andywestken (4086) The trailing zeros are only kept if you set either fixed or scientific mode. As Pax Diablo pointed out, string manipulation would be required. If you have a locale configured for French/Italian/whatever notation. It takes a string as an argument and returns its value in integer form. This is: I want 1.3347 to be printed "1.335" and 1.3397 to be printed "1.34" @xtofl: I had already checked that, but I still can't see the answer to my problem. The simplest cloud platform for developers & teams. What is the first science fiction work to use the determination of sapience as a plot point? will format x using 5 digits of precision (including before and after the decimal separator), removing trailing zeroes and the decimal dot for integers. It even can work with matrices and even correcting the value if you want to save it to .mat file. I have function, which shows a float number with comma instead of dot. c float remove trailing 0 double x = 4.300; double e = 7.34200; printf ("%g \n %g", x, e); // will print 4.3 and then 7.342 [ad_2] Please Share The palyground has the function floatToString BUT it's deprecated, however allternatives are given including stdlib.h. will automatically put a comma instead of a dot for you. decimal places? Korbanot only at Beis Hamikdash ? Lilipond: unhappy with horizontal chord spacing, Ways to find a safe route on flooded roads. Send us an email b. I think that can't be done with sprintf format strings alone. struct Stats player_1, player_2, player_3; printf("%s%26f%3u%u\n", player_1.player, player_1.bat_avg, player_1.hr, player_1.rbi); printf("%s%25f%3u%u\n", player_2.player, player_2.bat_avg, player_2.hr, player_2.rbi); printf("%s%24f%3u%u\n", player_3.player, player_3.bat_avg, player_3.hr, player_3.rbi); printf(" Player Name Batting Avg. Scan this QR code to download the app now. Can a C++ class have an object of self type? Question about your code: if all digits after the decimal place are 0, is your code stripping the decimal place as well? $200 free credit. No spam ever, unsubscribe at any When does 1/2=0 ? Not the answer you're looking for? Convert the string back to a float using the float () function. If you like GeeksforGeeks and would like to contribute, you can also write an article using write.geeksforgeeks.org. This article is contributed by Prakhar Agrawal. Not the answer you're looking for? This thread has been closed and replies have been disabled. How can an accidental cat scratch break skin but not damage clothes? are as precise as possible. The closest you could get would be: but the ".6" is the total numeric width so. 16 Answers Sorted by: 105 This can't be done with the normal printf format specifiers. printf("%.8g",value); If you use "%.6g" you will not get desired output for some numbers like.32.230210 it should print 32.23021 but it prints 32.2302, Hit the same issue, double precision is 15 decimal, and float precision is 6 decimal, so I wrote to 2 functions for them separately. But I am finding it hard to do this. But if i use this function on integer it shows float number. I am trying to hook up a CPU which I designed using SystemC to I/O pins on an FPGA. first convert to string (char array) then kill the trailing 0's by overwriting with /0. If you enjoy reading my articles and want to help me out paying bills, please Is linked content still subject to the CC-BY-SA license? What you can do is to sprintf("%.20g") the number to a string buffer then manipulate the string to only have N characters past the decimal point. I am doing the curl get request from my web Hello Folks, The parseFloat() method parses a string into a floating point number while removing all the trailing zeros. Assuming your number is in the variable num, the following function will remove all but the first N decimals, then strip off the trailing zeros (and decimal point if they were all zeros). 'g' can use style 'e' : From documentation : Style e is used if the exponent from its conversion is less than -4 or greater than or equal to the precision. Then, you can reduce the number of digits by taking x.n(digits=4) (this will also turn an integer into a floating-point number, which you may want to do for large integers). What does Bell mean by polarization of spin state? I get : 36.100. Learn more about this method by reading the documentation: Combining these tricks, your function could look like this: I would suggest to check carefully if the output is what you hoped for each in a wide variety of inputs. Reddit, Inc. 2023.
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