# The Simplify Command

The **Simplify** command acts on a wide variety of expressions. It contains
functionality that reduces expressions to a simpler form. The keystroke for the **Simplify**
command is the "*s*" key.

The functionality in the **Simplify** command with the Trig, Math and Code libraries
installed includes simplification of Boolean expression, algebraic expressions and expressions
involving trig functions.

Note that the simplify command doesn't fully evaluate numeric expressions. It will evaluate integer expressions like

1 + 3 + 7

and it will simplify expressions like

24/6

but the simplifier will leave expressions like

1/2 * (x + 1).

The **Simplify** command acts recursively on all terms of the highlighted expression, so
applying the **Simplify** command can result in multiple simplifications to an
expression.