math problem (converting to negative number)

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

I need to make this equation into a negative number

$math = $high * 50;
[download]

And I've tried

$math = $high * 50 * -1;
[download]

And

$math = ($high * 50) * -1;
[download]

But it errors out. Can someone help me out here?

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Re: math problem (converting to negative number) by cLive ;-) (Prior) on Jul 27, 2003 at 06:33 UTC
If $high can be negative, you'll probably want to use abs: `$math = -abs($high * 50);` [download] .02 cLive ;-)	[reply] [d/l]
Re: math problem (converting to negative number) by BUU (Prior) on Jul 27, 2003 at 04:19 UTC
`$math = -($high * 50)`	[reply] [d/l]
Re: math problem (converting to negative number) by fglock (Vicar) on Jul 27, 2003 at 04:33 UTC
What are the contents of `$high`?	[reply] [d/l]
Re: math problem (converting to negative number) by Anonymous Monk on Jul 28, 2003 at 06:39 UTC
Um. Both those expressions work for me (perl v5.8.0). What error do you get?	[reply]