interval+ ( i1 i2 -- i3 )
Factor handbook » The language » Numbers » Intervals » Interval arithmetic

Next:

interval- ( i1 i2 -- i3 )

Vocabulary
math.intervals

Inputs

i1	an interval
i2	an interval

Outputs

i3	an interval

Word description
Adds two intervals.

The output interval contains all possible values from adding any number in i1 to any number in i2.

Examples

USING: math.intervals prettyprint ; 10 11 [a,b] 5 7 [a,b] interval+ .
T{ interval { from { 15 t } } { to { 18 t } } }

Definition

USING: math ;

IN: math.intervals

: interval+ ( i1 i2 -- i3 )
    [ [ + ] interval-op nan-ok ] do-empty-interval ;