nan
How to generate NaN, -Infinity and +Infinity in ANSI C?
I use ANSI C89 (not C++), and I want to generate NaN, -Infinity and +Infinity. 开发者_StackOverflow社区[详细]
2023-03-10 21:34 分类:问答Finding the calculation that generates a NaN
I have a moderately large piece (a few thousand lines) of Python/Numpy/Scipy code that is throwing up NaNs with certain inputs. I\'ve looked for, and found, some of the usual suspects (log(0) and the[详细]
2023-03-10 03:20 分类:问答What string should I pass to java.lang.Long.parseLong() to return a NaN?
I unfortunately cant use expressions like Long.Nan as the string is actually a return value from a different C module. Is there a string开发者_开发问答 I can pass to parseLong() to return an NaN ?Ther[详细]
2023-03-04 20:35 分类:问答Help with adding variable to self and random number (javascript)
I am making a simple dice roller, which seems like a good first project to me, and may help others learn javascript as well, and when you roll a die (with a button), it is supposed to add to the total[详细]
2023-03-04 12:10 分类:问答Force gfortran to stop program at first NaN
To debug my a开发者_StackOverflow社区pplication (fortran 90) I want to turn all NaNs to signalling NaN.[详细]
2023-02-25 13:33 分类:问答Fixing the singularity of a function
Assume you have a function like F = lambda x: sin(x)/x Evaluating F(0.0) would result in a divide by zero warning, and would not give the expected result of 1.0. Is it possible to write another fu[详细]
2023-02-22 01:23 分类:问答C++ float number to nan
I want to know what makes a float number nan in c++. I am using a large dataset and it is really hard to trace. I want to know the ways of changing a float number to nan to reduce bug possibilities.[详细]
2023-02-20 11:53 分类:问答Is it possible to set a number to NaN or infinity?
Is it possible to set an element of an array to NaN in Python? Additionally, i开发者_C百科s it possible to set a variable to +/- infinity? If so, is there any function to check whether a number is in[详细]
2023-02-20 09:39 分类:问答Checking if a double (or float) is NaN in C++
Is there an isnan() function? PS.: I\'m in MinGW (if that makes a difference). I had this solved by using isnan() from <math.h>, which doesn\'t exist in <cmath>开发者_开发知识库, which I[详细]
2023-02-19 17:18 分类:问答Causes for NaN in C++ application that do no raise a floating point exception
To find the cause of floating point variables beeing set to NaN in my C++ program I enabled floating point exceptions like this:[详细]
2023-02-18 05:44 分类:问答