contract  contract one matrix by another
Ways to use contract :

contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Matrix,Number)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Matrix,RingElement)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Matrix,Vector)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Number,Matrix)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Number,Number)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Number,RingElement)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Number,Vector)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(RingElement,Matrix)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(RingElement,Number)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(RingElement,RingElement)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(RingElement,Vector)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Vector,Matrix)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Vector,Number)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Vector,RingElement)"  see contract(Matrix,Matrix)  contract a matrix by a matrix

"contract(Vector,Vector)"  see contract(Matrix,Matrix)  contract a matrix by a matrix