Documentation of Mathator scientific calculator. Try it out now!

2. OVERVIEW

Mathator is an online application designed for performing mathematical operations. It can be executed on any computer equipped with the Java Virtual Machine, internet connection and a web browser capable of running Java applets (for example, Internet Explorer 6 or greater, Mozilla Firefox or Google Chrome). If you don't have Java installed on your computer, you can download the latest version for free from the Java official site.

Mathator stands out mainly for its easy, agile and fast usage and execution. It can be accessed from any computer or mobile telephone with internet connection and from everywhere, whith no installations.

Mathator is compatible with the basic functionality of the Matlab programming language. If you are acquainted with the Matlab language, you can set out to work right now, but in this case you have to take into account that the Matlab language is provided with many features that are not included in Mathator yet. Only those that appear in this guide are currently available.

Quick start

Now we are going to see some basic examples. If you want to run them as you read this, you can open the calculator in a separate window and write the sentences on the text field placed on the upper left part of the calculator. To execute the sentence, push enter.

These are very low level examples, so if you know the basics of Matlab language you can skip over them.

Example 1: Find the area of a sphere of radius 10.

Sphere radius is 4ΠR². You can compute it by simply writing the values :

4*3.14*10^2

The symbol * stands for multiplication and the symbol ^ for power. You can use as well variables in order to store the values. Thus, you can access that values later:

radius = 10

area = 4*pi*radius^2

You don't need to define the variable pi because it is alredy defined by default.

Example 2: Using functions.

Let's evaluate this function in x = 2.1:

First, we define the variable x and its value:

x = 2.1

Now, we type the function:

f = sqrt( sin(x)^2 - cos(x) )

The expression sqrt stands for the square root function. sin stands for the sine function and cos for the cosine. The parameters functions take are enclosed between parenthesis.

You can find more examples and a more accurate desciption of the language here

Guide structure

The guide is structured in three sections:

1) Graphical user interface description.

2) Brief description of the language. If you are new to the Matlab language, this section can serve you as well as a tutorial to it.

3) List with the built-in functions.