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sub multiply( $$ ) |
sub multiply( $$ ) |
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Revision as of 21:26, 18 September 2007
Function definition
You are encouraged to solve this task according to the task description, using any language you may know.
You are encouraged to solve this task according to the task description, using any language you may know.
A function is a body of code that returns a value. The value returned may depend on arguments provided to the function.
Write a definition of a function called "multiply" that takes two arguments and returns their product.
C
double multiply( double a, double b ) { return a * b; }
Perl
sub multiply( $$ ) { $a = shift; $b = shift; return $a * $b; }
{header|PHP}
function multiply( $a, $b ) { return $a * $b; }