Hello Wise and Helpful Monks, I have a question for you that troubles me...

Ok, so I got bored and I thought I would make a calculator as one of my first programs. I figured out how to make it do anything, but you had to change the script everytime you had a different problem or operator. Then, as time went on I learned more as we all do. I learned the concept of "<STDIN>" so that I wouldn't have to change the script for new variables because the user would input them. I ended up with this and this is far as I have gotten in my problem.
#!/usr/bin/perl
$a="<STDIN>";
$b="<STDIN>";
print "$a+$b\n";

[download]

I have a problem though. As you can see I need to change the script if I want any other operation such as: subtraction, powers, multiplication, division, etc...
I haved asked in the CB and searched my books and the web but in vain, because I cannot find a way to make the user input the operation. I thought that this idea might look like....

$operator="<STDIN>"

but I was obviously and expectedly wrong.
Any ideas on how I can get this little operation input problem fixed?


-Variable_B

In reply to Inputing an Operator is it possible? by $Variable_B

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