The integer division command, intDiv(a,b) returns the whole number portion of a/b: this is equal to iPart(a/b). Although this operation is most useful for dividing whole numbers, this definition works for any number, whole or decimal, real or complex.
:intDiv(125,3) 41 :intDiv(-125,3) -41 :intDiv(125,π) 39
The intDiv() command also works for lists and matrices. Used with a list or matrix and a number, intDiv() is applied to the number paired with every element of the list or matrix. Used with two lists or two matrices, which must match in size, intDiv() is applied to matching elements of the list or matrix.
Use intDiv() and remain() for the quotient and remainder results of long division, respectively.
Constructions like iPart(a/b) should be replaced with intDiv(a,b): this is smaller and faster.
240 - Dimension mismatch happens when two list or matrix arguments don't match in size.
Division by zero does not throw an error; an undefined value is returned instead.