SQRT Function

Calculates the square root of the input variable.

result = SQRT(x)

x The value or array of values for which the square root is desired.

result The square root of x.

None.

SQRT handles complex numbers (defined by c = a + ib), in the following manner:


The ambiguous sign is taken to be the same as the sign of b.

If x is of double-precision floating-point or complex data type, SQRT yields a result of the same type. All other types yield a single-precision floating-point result.

If x is an array, the result of SQRT has the same dimensions, with each element containing the square root of the corresponding element of x.

x = [3, 5, 7, 9]
PRINT, SQRT(x)

1.73205       2.23607       2.64575       3.00000

For a list of other transcendental functions, see Transcendental Mathematical Functions in Volume 1 of this reference.