# USAGE:Edit

MOD a b

# DESCRIPTION:Edit

Compute a nonnegative remainder of A divided by B.

MOD is a function value.

# ARGUMENTS:Edit

**a**-- (Type: number money time)**b**-- Must be nonzero. (Type: number money time)

# (SPECIAL ATTRIBUTES)Edit

**catch**

# SOURCE CODEEdit

mod: func [ "Compute a nonnegative remainder of A divided by B." [catch] a [number! money! time!] b [number! money! time!] "Must be nonzero." /local r ][ all [negative? r: a // b r: r + b] a: abs a either all [a + r = (a + b) positive? r + r - b] [r - b] [r] ]