|
 |
 |
 |
 |
 |
 |
 |
 |
 |
D.3.1.4 dsum
Procedure from librarymatrix.lib (see matrix_lib).
- Usage:
- dsum(A1,A2,..); A1,A2,... matrices
- Return:
- matrix, direct sum of A1,A2,...
LIB "matrix.lib"; ring r = 0,(x,y,z),ds; matrix A[3][3] = 1,2,3,4,5,6,7,8,9; matrix B[2][2] = 1,x,y,z; print(A); ==> 1,2,3, ==> 4,5,6, ==> 7,8,9 print(B); ==> 1,x, ==> y,z print(dsum(A,B)); ==> 1,2,3,0,0, ==> 4,5,6,0,0, ==> 7,8,9,0,0, ==> 0,0,0,1,x, ==> 0,0,0,y,z |