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 Mathematica. As you will see later, lists are very important and general structures in Mathematica.
A list such as 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.
This squares each number in the list, and adds
This takes differences between corresponding elements in the two lists. The lists must be the same length.
The value of
is the whole list.
Just as you can set variables to be numbers, so also you can set them to be lists.
to be a list.
appears, it is replaced by the list.