# Mathematical easing

**URL:** <https://forum.kirupa.com/t/mathematical-easing/117206>\
**Category:** Uncategorized\
**Created:** [July 25, 2004, 7:17pm UTC](https://forum.kirupa.com/t/mathematical-easing/117206 "2004-07-25T19:17:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![pspecial](https://avatars.discourse-cdn.com/v4/letter/p/3e96dc/32.png) [@pspecial](https://forum.kirupa.com/u/pspecial)\
**Post date:** [July 25, 2004, 7:17pm UTC](https://forum.kirupa.com/t/mathematical-easing/117206/1 "2004-07-25T19:17:55Z")

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I am using the following code:

onClipEvent(enterFrame) {  
if (this.\_xscale \< 100) {  
scaletarget = 100;  
scalespeed = scaletarget - this.\_xscale;  
scalespeed = scalespeed /2  
this.\_xscale += scalespeed;  
this.\_yscale += scalespeed;  
}  
}

My question is:

Is the above code more or less the same as using Flash’s built in easing?

If so, where would I need to start in order to execute complex mathematical easing?

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**Author:** ![scotty](https://avatars.discourse-cdn.com/v4/letter/s/91b2a8/32.png) [@scotty](https://forum.kirupa.com/u/scotty)\
**Post date:** [July 25, 2004, 8:23pm UTC](https://forum.kirupa.com/t/mathematical-easing/117206/2 "2004-07-25T20:23:33Z")

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Have a look here  
[http://www.robertpenner.com/index2.html](http://www.robertpenner.com/index2.html)

scotty(-: