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Re: Some simple math and absolute values

by 1nickt (Canon)
on May 23, 2020 at 03:20 UTC ( [id://11117141]=note: print w/replies, xml ) Need Help??


in reply to Some simple math and absolute values

Hi,

I am not a math expert nor an algorithm expert nor a golfer, Perl or otherwise, but maybe something like this? 

my $price = ($wt || 1) * 10;
$price = 10 * $price/abs($price) if abs($price) < 10;

[download]

Output: 

perl blrg.pl 2.3

Price: 23
Next Weight: .3
Price: 10
Next Weight: 0
Price: 10
Next Weight: -.3
Price: -10
Next Weight: -2.3
Price: -23
Next Weight:

[download]

Hope this helps!


The way forward always starts with a minimal test.

Replies are listed 'Best First'.
Re^2: Some simple math and absolute values
by sidmuchrock (Novice) on May 23, 2020 at 14:40 UTC
    This was what I was missing last night! I kept trying to say if $wt/abs($wt) and it was dying in the 0 case, but by turning the 0 to $min in the possible total and then checking $total/abs($total) that solved. it. Thank you. 
            $total = ($wt || $min) * $price;
        $total = $total/abs($total) * $price * $min if abs($wt) < $min
+;

    [download]
[reply]
[d/l]

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