How to work with FUNCTION
To work with FUNCTION
Step 1
Description:
The function is a subprogram called form within an expression that returns a value through the function name.
Declaration:
function ident (parameters) : type;
Example:
function sumofsquares(n: integer): integer;
Edited By: Norasyikin Mahmud
© 2001 ISC
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051101
To work with Boolean operators
Step 1
Description:
Boolean operators are the special operators are use to combine Boolean expressions;
Declaration:
Operator Operation
not negation
and logical and
or logical or
xor logical xor
Example:
if (player1 > player2) or (player1 >= player2) then
Writeln(' The winner is player 1');
if (player1 <>
Writeln(' The winner is player 2');
To work with relational operators
Step 1
Description:
A sequence of identifiers, separated by compatible operators, that evaluates to TRUE or FALSE
Declaration:
Operator Operation
= Equal
Not equal
<>
Greater than
<= Less or equal
>= Greater or equal
Example:
if player1 > player2 then
Writeln(' The winner is player 1');
if player1 <>
Writeln(' The winner is player 2');
if player1 = player2 then
Writeln(' No winner in this game ');
To work with Binary Arithmetic Operators
Step 1
Description:
Arithmetic operators, which take real or integer operands, include +, –, *, /, div, and mod.
Declaration:
Operator Operation
+ Addition
Subtraction
Multiplication
/ Division
div Integer division
mod remainder
Example:
Writeln('Answer is : ',a+b+c);
Writeln('Answer is : ',a*b*c);
Writeln('Answer is : ',a+b-c);
