$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:
Text
Wolfram Research (1988), $Post, Wolfram Language function, https://reference.wolfram.com/language/ref/$Post.html.
CMS
Wolfram Language. 1988. "$Post." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$Post.html.
APA
Wolfram Language. (1988). $Post. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$Post.html