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5.1.136 wedge

Syntax:

wedge ( matrix_expression, int_expression )

Type:

matrix

Purpose:

wedge(M,n) computes the n-th exterior power of the matrix M.

Example:
  ring r;
  matrix m[2][3]=x,y,y,z,z,x;
  print(m);
→ x,y,y,
→ z,z,x 
  print(wedge(m,2));
→ xz-yz,-x2+yz,xy-yz

See int; matrix; minor.


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