<div dir="ltr">there's a good approximation for tanh that can be made using just a couple of simple arithmetic objects:<br><br>formula is:  tanh(x) ~= x*(27+x*x) / (27+9*x*x)<div><br></div><div>it's close enough for every application i've ever come across, it's cheap cos it only uses simple arithmetic, and it doesn't degrade the resolution of your signal like a table lookup does. <br><br><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jul 3, 2015 at 12:56 PM, Chris McCormick <span dir="ltr"><<a href="mailto:chris@mccormick.cx" target="_blank">chris@mccormick.cx</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 03/07/15 03:06, Pagano, Patrick wrote:<br>
> Is there a way i can replace something for tanh~<br>
> and inits in Vanilla 46?<br>
<br>
</span>Using a pre-computed table for speed:<br>
<br>
<a href="https://github.com/chr15m/blockhead/blob/master/e_tanh.pd" rel="noreferrer" target="_blank">https://github.com/chr15m/blockhead/blob/master/e_tanh.pd</a><br>
<a href="https://github.com/chr15m/blockhead/blob/master/e_tanh-help.pd" rel="noreferrer" target="_blank">https://github.com/chr15m/blockhead/blob/master/e_tanh-help.pd</a><br>
<br>
Or install "blockhead" using deken. :)<br>
<br>
Cheers,<br>
<br>
Chris.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
<a href="http://mccormick.cx/" rel="noreferrer" target="_blank">http://mccormick.cx/</a><br>
</font></span><div class="HOEnZb"><div class="h5"><br>
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