Does Fmod work negative numbers?

no it is not. check out this statement (see your math. h, assuming you are using the RealView compiler): “fmod returns the value x – i * y, for some integer i such that, if y is nonzero, the result has the same sign as x and magnitude less than the magnitude of y.

What happens if you modulo a negative number?

When both the divisor and dividend are negative If both the divisor and dividend are negative, then both truncated division and floored division return the negative remainder.

How does modulo work with negative numbers?

Modulo and remainder operators differ with respect to negative values. With a remainder operator, the sign of the result is the same as the sign of the dividend (numerator) while with a modulo operator the sign of the result is the same as the divisor (denominator).

Is Result of Modulo always positive?

Is modulus always positive? The answer is “Yes”. Reason: The value of modulus of any number is always positive.

What does Fmod return in C++?

Return Value The fmod() function returns the floating-point remainder of x/y. If y is zero or if x/y causes an overflow, fmod() returns 0. The value of errno can be set to EDOM.

What is Fmod function in C?

C library function – fmod() The C library function double fmod(double x, double y) returns the remainder of x divided by y.

Does modulo work on negative numbers in C?

Anyone can predict the output of a modulus operator when the both operands are positive. But when it comes to the negative numbers, different languages give different outputs. In C language, modulus is calculated as, a % n = a – ( n * trunc( a/n ) ).

Can you have a negative remainder?

No, remainder can’t be negative. As division algorithm says, Any integer ‘n’ can be written in the form of bq+r where ‘b’ is a positive integer, ‘q’ is the quotient and ‘r’ is the remainder.

Can modulo return a negative?

These functions give the same values for positive arguments, but the modulus always returns positive results for negative input, whereas the remainder may give negative results.

How does fmod work in C++?

The fmod function calculates the floating-point remainder f of x / y such that x = i * y + f , where i is an integer, f has the same sign as x , and the absolute value of f is less than the absolute value of y . C++ allows overloading, so you can call overloads of fmod that take and return float and long double values.