And you can profit of an enhencemt if you too add if($i%2==0){next} before eleborating the square root, as you can see in the ch_opt row.
          Rate     la     di     ch ch_opt
la     0.329/s     --   -99%   -99%   -99%
di      25.3/s  7600%     --   -50%   -56%
ch      50.4/s 15230%    99%     --   -12%
ch_opt  57.6/s 17417%   127%    14%     --

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L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re^2: Number functions I have lying around by Discipulus
in thread Number functions I have lying around by Lady_Aleena

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