$Post

$Post

is a global variable whose value, if set, is applied to every output expression.

Examples

Basic Examples  (3)

By default, $Post is not defined, meaning output comes directly from evaluation:

Set $Post to N so that all expressions are evaluated numerically after evaluation:

Restore $Post to the default:

Set $Post to Simplify so that symbolic simplification is tried on each output:

Restore $Post to the default:

Introduced in 1988
 (1.0)