The
CRAMER
function solves an *
n*
by *
n*
linear system of equations using Cramer's rule.

This routine is written in the IDL language. Its source code can be found in the file ```
cramer.pro
```

in the ```
lib
```

subdirectory of the IDL distribution.

Use this keyword to set the value of the floating-point zero. A floating-point zero on the main diagonal of a triangular array results in a zero determinant. A zero determinant results in a "Singular matrix" error and stops the execution of CRAMER. For single-precision inputs, the default value is 1.0 *
¥*
10^{
-6}
. For double-precision inputs, the default value is 1.0 *
¥*
10^{
-12}
.