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4.9.2 matrix expressions
A matrix expression is:
- an identifier of type matrix
- a function returning matrix
-
matrix expressions combined by the arithmetic operations
+,-or* - a type cast to matrix (see matrix type cast)
Example:
ring r=0,(x,y),dp; poly f= x3y2 + 2x2y2 +2; matrix H = jacob(jacob(f)); // the Hessian of f matrix mc = coef(f,y); print(mc); → y2, 1, → x3+2x2,2 module MD = [x+y,1,x],[x+y,0,y]; matrix M = MD; print(M); → x+y,x+y, → 1, 0, → x, y |