# Matrix ** Matrix -- tensor product

## Synopsis

• Operator: **
• Usage:
f ** g
• Inputs:
• f,
• g,
• Outputs:
• , the tensor product of maps f and g

## Description

Other names for the tensor product include: the outer product, or the Kronecker product of two matrices.
 i1 : R = ZZ[a..d]; i2 : f = matrix {{a,b}} o2 = | a b | 1 2 o2 : Matrix R <--- R i3 : g = transpose matrix {{c,d}} o3 = {-1} | c | {-1} | d | 2 1 o3 : Matrix R <--- R i4 : f ** g o4 = {-1} | ac bc | {-1} | ad bd | 2 2 o4 : Matrix R <--- R