What is the code to open the root number in C language?

In C language, the code to open the root sign is "sqrt (floating point value x)"; for example, "sqrt(4.0)" performs the square root operation on 4, and the result is 2. sqrt() is a built-in root operation function in C language. Its operation result is the arithmetic square root of the function variable; this function can neither operate negative values nor output imaginary results.

The operating environment of this tutorial: Windows 7 system, C 17 version, Dell G3 computer.

Add #include in the header file

Then use sqrt, you can use double definition

For example:

#include  #include  #include  double sqrt(double n); int main(void) { double x = 3.1415926540, result; result = sqrt(x); printf("The square root of %lf is %lf", x, result); return 0; }

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