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For given floating point numbers x and a, I would like to compute r (and n) such that x = a*n + r . In C/C++ this function is called fmod. However I do not see a convenient function in .NET. Math.DivRem is only for integers ...
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Formula of fmod:fmod= numerator - t*denominator.
Description. The fmod() function calculates the floating-point remainder of x/y. The absolute value of the result is always less than the absolute value of y. The result will have the same sign as x.
C library function - fmod() The C library function double fmod(double x, double y) returns the remainder of x divided by y.
Definition and Usage. The math. fmod() method returns the remainder (modulo) of x/y.
I think you can just use % for floats as well. r = x % a
"Arithmetic operators (C# reference)":
All numeric types have predefined modulus operators.
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I think you are looking for System.Math.IeeeRemainder
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