Calculates the square root of the input variable.

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:

where:

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)

; PV-WAVE prints: 1.73205    2.23607    2.64575    3.00000

alibSqrt

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