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C programming/math.h/sqrt
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sqrt () is a C library function.
It is mainly associated with programming language.
It is considered under [math.h] header file.
function:
#include<math.h>
double sqrt (double x );
float sqrt (float x );
long double sqrt (long double x );
Description:
sqrt computes square root. And returns The square root of x.
In C++, this function is overloaded in <complex> and <valarray> (see complex sqrt and valarray sqrt).
If the argument is negative, a domain error occurs, setting the global variable errno to the value EDOM.
Return Value:
Square root of x.
Portability:
In C, only the double version of this function exists with this name.
Example:
/* sqrt example */
#include <stdio.h>
#include <math.h>
int main ()
{
double param, result;
param = 1024.0;
result = sqrt (param);
printf ("sqrt(%lf) = %lf\n", param, result );
return 0;
}
Output:
sqrt(1024.000000) = 32.000000
See also:
pow Raise to power (function).
log Compute natural logarithm (function).
exp compute exponent of number (function) .
All the above are Related functions of sqrt ().
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