sqrt(3) BSD Library Functions Manual sqrt(3)
NAME
sqrt -- square root function
SYNOPSIS
#include <math.h>
double
sqrt(double x);
long double
sqrtl(long double x);
float
sqrtf(float x);
DESCRIPTION
The sqrt() function compute the non-negative square root of x.
SPECIAL VALUES
sqrt(-0) returns -0.
sqrt(x) returns a NaN and generates a domain error for x < 0.
VECTOR OPERATIONS
If you need to apply the sqrt() function to SIMD vectors or arrays, using
the following functions provided by the Accelerate.framework may give
significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vsqrtf(vFloat x);
vFloat vrsqrtf(vFloat x);
void vvsqrtf(float *y, const float *x, const int *n);
void vvsqrt(double *y, const double *x, const int *n);
void vvrsqrtf(float *y, const float *x, const int *n);
void vvrsqrt(double *y, const double *x, const int *n);
SEE ALSO
math(3)
STANDARDS
The sqrt() function conforms to ISO/IEC 9899:2011.
BSD December 11, 2006 BSD
Mac OS X 10.9.1 - Generated Thu Jan 9 06:36:23 CST 2014