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Product, Sum |
Syntax |
Product(L:List):OBJECT Sum(L:List):OBJECT |
Summary |
the product or sum of the elements of a list |
Description |
These functions return the product and sum, respectively, of the objects in the list L. |
Example |
Use R ::= Q[x,y]; Product([3,x,y^2]); 3xy^2 ------------------------------- Sum([3,x,y^2]); y^2 + x + 3 ------------------------------- Product(1..40)=Fact(40); TRUE ------------------------------- Sum(['c','oc','oa']); cocoa ------------------------------- |
See also: |