Technically, the execution section contains a list of command statements enclosed between the words Begin and End. Each command statement is ended with a semicolon ( ; ). At the end of the execution section, write a full stop ( . ).
Begin
Statement1;
Statement2;
...
End.
In the execution section you perform several calculations. To produce your end result, you have to perform a series of calculations in the command statements.
The command statements can be any of the following:
|
Value Assignment |
Store a value inside a variable |
|
Function Call |
Use the results of other functions (programs) in your calculations |
|
Condition |
Control what statements are executed based on certain conditions |
|
Loop |
Repeat the execution of some statements for a fixed number of times or as long as a certain condition is valid |
Command statements are executed in the exact order that they are written in the program. Some basic constructs can be used inside the command statements, these are:
|
Block Statements |
Combine several single statements into one |
|
Expressions |
Calculate a numeric or Boolean value |
When you have calculated your end result, you can then do two things with it:
▫ Plot the result on the screen. You do this with the drawing functions. See Drawing Functions.
▫ Put the result into the variable Result. You can then use it again in other programs. See Value Assignment.
Value Assignment