Описание тега sqrt

c programming language:
The sqrt(), sqrtf() and sqrtl() functions return the nonnegative square root of x. With the GCC compiler they resid in the math library (libm), which is linked using -lm. They can be found in the <math.h> header.

c++ programming language:
The std::sqrt() function returns the nonnegative square root of x. It can be found in the <cmath> header.

matlab:
A built-in function, can (and should) be used in a vectorived manner on numerc matrices.
Handles negative and complex numbers as well.
See official doc for more details.

numpy:
Return the positive square-root of an array, element-wise.
See doc for more details.

java:
Returns the correctly rounded positive square root of a double value.
See the java.lang.Math class for more details.