Operators > Calculus Operators > Product Operator
Product Operator
The product operator calculates the product of all the elements in a vector or calculates the product of an expression that contains a range variable.
The product operator has three forms:
Returns the product of all the elements in vector v.
Returns the product over i of the expression X.
Returns the product of the expression X as j goes from m to n .
v is a vector.
i is the name of range variable.
j is the name of a local range variable.
X is an expression that typically contains i or j and which evaluates to a real number.
m, n are real numbers. n > m.
Additional Information
Leave the top placeholder of the product operator empty depending on the kind of product you want to perform.
When you define a range variable inside the summation operator, type equal after the local range variable name or insert the local range operator from the Ribbon.
Since variables m and n are real numbers, it follows that you can specify non-integer real limits such as m=0.4 and n=3.7. In this case, the number of elements that are operated on by the product operator may vary depending on the actual values of m and n.
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