Here is a list of all the mathematical operations that Eudox can handle.
To calculate an expression you just type in the expression and press
Enter. For example if you would like to calculate 1+2 you type: '1' '+'
'2' and hit the enter key. You will now see two new lines in the result field. The first line where the blue arrow is tells you what you typed in. The second line tells you the result of the expression. Here are some examples of simple expressions that Eudox will calculate
for you. Remember that Eudox use '.' for a decimal point, not ',' which would
be more common in Sweden and some other countries. You can use the last result given by Eudox by type % like this. Eudox will answer 16 because that was the last result it gave you (2^(1+3)). Mathematical constants Here is a list of mathematical constants that Eudox can handle.
This calculates some expressions with mathematical constants. Remember to be careful with mathematical constants so you do not mix them with variables. For example, you can't use e or p as a variable in the plot functions. Eudox can handle a lot of functions. In Eudox we separate functions and commands, functions have parentheses ("(...)") around its argument and commands have square brackets ("[...]") Here is a list of all the mathematical functions that Eudox can handle.
To calculate for example cos(0) just type it in and press enter. Eudox will use radians if nothing else is specified. This tells Eudox to work with degrees instead of radians. You will learn more about setting variables and other options later in
this book.
Eudox can handle variables that can contain values, expressions or data. To create a variable use the function NewVariable[]
This creates a variable named temp and stores the value zero in it. Remember that you can't create variables that have the same name as a
constant or function. We also strongly recommend that you do not use x,
y, z or t because they are often associated with plotting. It is possible to change the value for a variable after it has been defined.
This sets the value 3.7 to the already defined variable u. There are many variables defined already from the start. These variables
determine how various parts of Eudox will work.
Eudox has lots of commands to process and visualize all kinds of values, expressions and data. Commands differ from functions by the square brackets and that all command must have the first letter uppercased. You can also create your own functions. But your "custom made" function have to use the square brackets instead of parentheses. This is because functions with parentheses are reserved for predefined Eudox functions. This will improve speed. Creating a function is similar to creating a variable. You use the command NewFunction[]
This create a function and store the sin(x)+cos(x) in it. This calculates the function with p/2 as the x value. This sets the expression for R after is has been created. Eudox contains about 40 commands to create, calculate and visualize values, expression and data. All of these functions will be explained in this book.
You can use Help[] to get the syntax and an example of a command. This
tell you how to use Plot[] (The function Plot will be covered later in
this book) |