under ( invertible-quot quot -- quot )

Vocabulary

inverse

Inputs

invertible-quot	a quotation
quot	a quotation

Outputs

quot	a quotation

Word description

Applies invertible-quot, then quot and finally the inverse of invertible-quot.

Examples

Round a decimal number to two decimals:

USING: inverse math math.functions prettyprint ; 123.456 [ 100 * ] [ round ] under .
123.46

Definition

USING: kernel ;

IN: inverse

MACRO: under ( invertible-quot quot -- quot )
    over [undo] [ compose ] dip compose ;