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NumComps |
Syntax |
NumComps(X:VECTOR or MODULE):INT |
Summary |
the number of components of a vector |
Description |
If X is a vector, this function returns the number of components of X; it gives the same result as Len(X). If X is a module, then this function returns the rank of the free module in which X is defined. |
Example |
Use R ::= Q[x,y]; NumComps(Vector(x,y,x^2+y^2,x^2-y^2)); 4 ------------------------------- M := Module([x,y^2,2+x^2y],[x,0,y]); -- a submodule of R^3 NumComps(M); 3 ------------------------------- M.NumComps; -- alternative syntax 3 ------------------------------- |
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