Re: tanh~ distortion without expr~?

Yep, this works great!! Here is the implementation and another one, that is also quite nice…

(It is a patch to be compiled with heavy, but you get the idea)




> Am 11.12.2025 um 12:35 schrieb Peter P. <[email protected]>:
> 
> Wow, quick and neat -merci bien Cyrille!
> P
> 
> * cyrille henry <[email protected]> [2025-12-11 12:11]:
>> hello,
>> 
>> For a distortion, you can use f(x) = x*(27 + x²) / (27 + 9*x²) as a good enough tanh approximation. (x need to be clipped between -3 and 3)
>> https://www.desmos.com/calculator/dxg70xbtne?lang=fr
>> 
>> Cheers
>> C
>> 
>> 
>> 
>> Le 11/12/2025 à 12:01, Peter P. a écrit :
>>> Hi,
>>> 
>>> is there a vanilla way to implement tanh~ distortion without using expr~?
>>> 
>>> Thanks!
>>> P
>>> 
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