# Coding Different Trigonometric Functions in Processing

**URL:** <https://discourse.processing.org/t/coding-different-trigonometric-functions-in-processing/22257>\
**Category:** Coding Questions\
**Created:** [June 29, 2020, 6:07pm UTC](https://discourse.processing.org/t/coding-different-trigonometric-functions-in-processing/22257 "2020-06-29T18:07:55Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Adi](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@Adi](https://discourse.processing.org/u/Adi)\
**Post date:** [June 30, 2020, 5:49pm UTC](https://discourse.processing.org/t/coding-different-trigonometric-functions-in-processing/22257/7 "2020-06-30T17:49:16Z")

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Thanks for your replies, I did search the internet, but I never really found a way to put variables in it, I probably didn’t look hard enough. @paulgoux should I do this?:

```auto
float e = exp(1.0)
1/(1+pow(e, x);

```

I don’t know what x should be, is it the input?  
I want the sigmoid to go from 0 to 1, because it would find the probability, so I thought that the 1 in (1+e^x) would be 0, but I don’t know if I am right.

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