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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