Usage of sqrt function in C language

Usage of sqrt function in c language

The sqrt function is used to calculate the square root of a non-negative real number. The function prototype of

sqrt: The function prototype of the math.h header file in VC6.0 is double sqrt(double);

Note: sqrt is Square Root Calculations. This operation can test the floating point capability of the CPU.

Header file: math.h

Program example:

#include <math.h>
#include <stdio.h>
int main(void)
{
    double x = 4.0, result;
    result = sqrt(x); //result*result = x
    printf("The square root of % is %\n", x, result);
    return 0;
}

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