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Demonstrating and showing pupils and students one application of Mathematics.







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Perl Structure



Perl Syntax

The my keyword is used to declare variables.
Variables names are appended with the $ symbol.

Conditional operators like
       if(){
       ...
       } else {
       ...
       }
give different options for different conditions.
For instance:

if(age > 18){
print("You are grown-up now.");
} else {
print("You are still young.");
}


Iteration operations are done using loops:

while loop:
       while(){
       ...
       }

and

for loop:
       for(){
       ...
       }.


Note: The above commands in Perl can be used in the suffix;
example: $turn = 1 if player eq "black";


The arithmetic operators do exactly what you would expect:
       + means add;
       - means subtract;
       * means multiply;
       / means divide; and
       % means moduli.

Note: Moduli means remainder after division.

Dividing 5 by 2 (5 ÷ 2) gives a remainder of 1.
Hence 5 % 2 = 1;


# is used for comments.
Comments are just remarks (explanations) you write along side your code for clarity purposes (help you define what you are doing); and also for future remembrance of what a piece of code was meant for.

The compiler neither needs nor processes them.

Tip: You don't need to write out comments as you follow our daemonstrations.










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