roman- ( x y -- z )
Roman numerals

Prev:	roman+ ( x y -- z )
Next:	roman* ( x y -- z )

Vocabulary
roman

Inputs

x	a string
y	a string

Outputs

z

a string

Word description
Subtracts two Roman numerals.

Examples

USING: io roman ; "x" "v" roman- print
v

See also
roman+

Definition

USING: math roman.private ;

IN: roman

: roman- ( x y -- z ) [ - ] binary-roman-op ;