# Pre-Cal?

**URL:** <https://forum.kirupa.com/t/pre-cal/105635>\
**Category:** Uncategorized\
**Created:** [March 28, 2004, 7:11am UTC](https://forum.kirupa.com/t/pre-cal/105635 "2004-03-28T07:11:05Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Hawk](https://avatars.discourse-cdn.com/v4/letter/h/22d042/32.png) [@Hawk](https://forum.kirupa.com/u/Hawk)\
**Post date:** [March 28, 2004, 7:11am UTC](https://forum.kirupa.com/t/pre-cal/105635/1 "2004-03-28T07:11:05Z")

</div>

err… my friend in pre-cal was tellin me some stuff… and i asked him to give me a formula that would make a sin graph but… bigger waves to smaller waves.

he gave me this:  
XsinY(-)

(-) being theta.

to graph this, i need Y on the other side… or someone can tell me another way to graph it… but if not… then tell me how to get Y on the left!

☹

thanks!

if you need me to clarify anything let me know.