math.subtract

Math: Subtract

Performs subtraction of $a and $b. A can be an array and $b a number, in which case each member of $a gets subtracted $b. If $a is an array and $b is not provided then neg. array_sum is used to return a single numeric value. If both $a and $b are arrays, each member of $a is summed against the corresponding member in $b compared using index.

Arguments

a

DataType
mixed
Required
false
Description
First number 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).

b

DataType
mixed
Required
false
Description
Optional: Second number or Iterator/Traversable/Array for calculation