zip

Combine lists

Use only in the MuPAD Notebook Interface.

This functionality does not run in MATLAB.

Syntax

zip(list1, list2, f)
zip(list1, list2, f, default)

Description

zip(list1, list2, f) combines two lists via a function f. It returns a list whose i-th entry is f(list1[i], list2[i]). Its length is the minimum of the lengths of the two input lists.

zip(list1, list2, f, default) returns a list whose length is the maximum of the lengths of the two input lists. The shorter list is padded with the default value.

If f produces the void object of type DOM_NULL, then this element is removed from the resulting list.

zip is recommended for fast manipulation of lists. It is a function of the system kernel.

Examples

Example 1

The fastest way of adding the entries of two lists is to 'zip' them via the function _plus:

zip([a, b, c, d], [1, 2, 3, 4], _plus)

If the input lists have different lengths, then the shorter list determines the length of the returned list:

zip([a, b, c, d], [1, 2], _plus)

The longer list determines the length of the returned list if a value for padding the shorter list is provided:

zip([a, b, c, d], [1, 2], _plus, 17)

Parameters

list1, list2

lists of arbitrary MuPAD® objects

f

Any MuPAD object. Typically, a function of two arguments.

default

Any MuPAD object

Return Values

List.

Overloaded By

list1, list2

See Also

MuPAD Functions

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