I want to check the output of a mathematical function to check if it is an integer or a float So I can use it in an if funtion ie 
if ($var == integer) {
        print "$a is an integer.\n";
    } elsif ($var == float) {
        print "$a is a float.\n";   
    } else {
        print "$a is neither an integer or float.\n";
    }

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What I do not know how to do is check if the output is an integer a float or a string Any help greatly appreciated as I am new to perl and porogramming

In reply to comparing output to check if is an integer or float by zerodata

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