Platform

x64, Win32, .NET

Purpose

To get the square root of the argument.

Class

Elemental function.

Syntax

REAL FUNCTION SQRT(X); REAL X
COMPLEX FUNCTION SQRT(X); COMPLEX X

Description

If X is real, it must not be negative.

If X is complex, the result is the principal value which has a real part that is non-negative. If the real part is zero, the imaginary part is non-negative.