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Moved matrix words to contrib/math 

Renamed matrices.factor to vectors.factor
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Doug Coleman 2005-10-20 23:58:49 +00:00
parent f318648f4c
commit 649c56fc49
1 changed files with 0 additions and 24 deletions
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library/math/matrices.factor → library/math/vectors.factor
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@ -42,27 +42,3 @@ USING: arrays generic kernel sequences ;
#! Orthogonal projection of u onto v.
[ [ v. ] keep norm-sq v/n ] keep n*v ;
! Matrices
: zero-matrix ( m n -- matrix )
swap [ drop zero-array ] map-with ;
: identity-matrix ( n -- matrix )
#! Make a nxn identity matrix.
dup [ swap [ = 1 0 ? ] map-with ] map-with ;
! Matrix operations
: mneg ( m -- m ) [ vneg ] map ;
: n*m ( n m -- m ) [ n*v ] map-with ;
: m*n ( m n -- m ) swap n*m ;
: n/m ( n m -- m ) [ n/v ] map-with ;
: m/n ( m n -- m ) swap [ swap v/n ] map-with ;
: m+ ( m m -- m ) [ v+ ] 2map ;
: m- ( m m -- m ) [ v- ] 2map ;
: m* ( m m -- m ) [ v* ] 2map ;
: m/ ( m m -- m ) [ v/ ] 2map ;
: v.m ( v m -- v ) flip [ v. ] map-with ;
: m.v ( m v -- v ) swap [ v. ] map-with ;
: m. ( m m -- m ) flip swap [ m.v ] map-with ;