e-Statistics > 4470-5470 Probability and Statistics I # Get started with Maxima

Maxima is a fairly complete computer algebra system for symbolic computation, and available for free on Windows, Mac and Linux computers:

If you are the windows user, you can get an installer program maxima-5.20.x.exe from

When you completed the installation, click the icon for wxMaxima. Close the help window, and hit [Enter] at the main windown. Then the following prompt should appears at the main window:

```-->
```
To carry out a simple calculation, type the expression, 5*2^3+4, at the prompt.
```--> 5*2^3 + 4
```
Hit [Shift]+[Enter]. It evaluates the expression, and displays the result with the expression.
```(%i1) 5*2^3 + 4;
(%o1) 44
```
The fraction can be evaluated and simplified, but it remains the fraction. For example, evaluate 24/9, and obtain the following result. Don't forget [Shift]+[Enter]!
```(%i2) 24/9;
8
(%o2) -
3
```
In order to evaluate it numerically, you have to use the function "float".
```(%i3) float(24/9);
(%o3) 2.666666666666667
```