NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | USAGE | ATTRIBUTES | SEE ALSO
cc [ flag ... ] file ... -lm [ library ... ] #include <math.h>double hypot(double x, double y);
Upon successful completion, hypot() returns the length of the hypotenuse of a right angled triangle with sides of length x and y.
If the result would cause overflow, HUGE_VAL is returned and errno may be set to ERANGE.
If x or y is NaN, NaN is returned.
The hypot() function takes precautions against underflow and overflow during intermediate steps of the computation.
An application wishing to check for error situations should set errno to 0 before calling hypot(). If errno is non-zero on return, or the return value is HUGE_VAL or NaN, an error has occurred.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
MT-Level | MT-Safe |
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | USAGE | ATTRIBUTES | SEE ALSO