"Liu Xiaojun" <[EMAIL PROTECTED]> writes:
> Here is the code:
> (1) -> R := SQMATRIX( 2 , INT )
> (2) -> y :R := matrix[[1,0],[1,1]]
> (3) -> delta(r:R):R == y*r - r*y
> (4) -> S := OREUP('x, R, 1, delta)
>
> >> System error:
> The function MAP is undefined.
As I said, this is a bug. However, here is a workaround:
R := SQMATRIX(2, INT)
y: R := matrix[[1,0],[1,1]]
delta: R -> R := r +-> y*r - r*y
S := OREUP('x, R, 1, delta)
I think the problem is that the types are wrong:
(3) -> delta: R -> R := r +-> y*r - r*y
(3) theMap(*1;anonymousFunction;0;frame0;internal)
Type: (SquareMatrix(2,Integer) -> SquareMatrix(2,Integer))
(4) -> delta2(r: R): R == y*r - r*y
Function declaration delta2 : SquareMatrix(2,Integer) ->
SquareMatrix(2,Integer) has been added to workspace.
Type: Void
Martin
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