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D.3.1.28 headStand
Procedure from librarymatrix.lib (see matrix_lib).
- Usage:
- headStand(M); M matrix
- Return:
- matrix B such that B[i][j]=M[n-i+1,m-j+1], n=nrows(M), m=ncols(M)
LIB "matrix.lib"; ring r=0,(A,B,C),dp; matrix M[2][3]= 0,A, B, A2, B2, C; print(M); ==> 0, A, B, ==> A2,B2,C print(headStand(M)); ==> C,B2,A2, ==> B,A, 0 |