factor/extra/math/algebra/algebra.factor

10 lines
303 B
Factor

! Copyright (c) 2007 Samuel Tardieu.
! See http://factorcode.org/license.txt for BSD license.
USING: kernel math math.functions sequences fry ;
IN: math.algebra
: chinese-remainder ( aseq nseq -- x )
dup product [
'[ _ over / [ swap gcd drop ] keep * * ] 2map sum
] keep rem ; foldable