DETERM Function

Standard Library function that calculates the determinant of a square, two-dimensional input variable.

Usage

result = DETERM(array)

Input Parameters

array — Array with two equal dimensions. Can be any data type except string.

Returned Value

result — The determinant of the square matrix of array. The result is a scalar value, of either single- or double-precision floating-point data type.

Keywords

None.

Discussion

Determinants can be used to evaluate systems of linear equations.

Example

a = INTARR(4, 4)
FOR i=0L,3 DO a(i,*) = [1, i+2, (i+2)^2, (i+2)^3]
PRINT, a
; PV-WAVE prints:
;    1       1       1       1
;    2       3       4       5
;    4       9      16      25
;    8      27      64     125
PRINT, DETERM(a)
; PV-WAVE prints:
;     12.0000