# Wolfram Language & System 11.0 (2016)|Legacy Documentation

This is documentation for an earlier version of the Wolfram Language.
WOLFRAM LANGUAGE TUTORIAL

# Making Lists of Objects

In doing calculations, it is often convenient to collect together several objects, and treat them as a single entity. Lists give you a way to make collections of objects in the Wolfram Language. As you will see later, lists are very important and general structures in the Wolfram Language.

A list such as {3,5,1} is a collection of three objects. But in many ways, you can treat the whole list as a single object. You can, for example, do arithmetic on the whole list at once, or assign the whole list to be the value of a variable.

Here is a list of three numbers.
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This squares each number in the list, and adds 1 to it.
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This takes differences between corresponding elements in the two lists. The lists must be the same length.
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The value of % is the whole list.
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You can apply any of the mathematical functions in "Some Mathematical Functions" to whole lists.
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Just as you can set variables to be numbers, so also you can set them to be lists.

This assigns v to be a list.
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Wherever v appears, it is replaced by the list.
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