math.product

Math: Product (multiplication)

Product (multiplication) of $a and $b. A can be an array and $b a number, in which case each member of $a gets multiplied by $b. If $a is an array and $b is not provided then array_product is used to return a single numeric value. If both $a and $b are arrays, each member of $a is multiplied against the corresponding member in $b compared using index.

Arguments

a

DataType

mixed

Required

false

Description

First number for calculation

b

DataType

mixed

Required

true

Description

Second number or Iterator/Traversable/Array for calculation

fail

DataType

boolean

Required

false

Description

If TRUE, throws an Exception if argument "a" is not specified and no child content or inline argument is found. Usually okay to use a NULL value (as integer zero).