# Sin-1 in flash..how?

**URL:** <https://forum.kirupa.com/t/sin-1-in-flash-how/20023>\
**Category:** Uncategorized\
**Created:** [May 4, 2003, 4:34am UTC](https://forum.kirupa.com/t/sin-1-in-flash-how/20023 "2003-05-04T04:34:39Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![xzyfer](https://avatars.discourse-cdn.com/v4/letter/x/ce73a5/32.png) [@xzyfer](https://forum.kirupa.com/u/xzyfer)\
**Post date:** [May 4, 2003, 4:34am UTC](https://forum.kirupa.com/t/sin-1-in-flash-how/20023/1 "2003-05-04T04:34:39Z")

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how would i use reverse Sin, Cos and Tan in flash so i could do SOA-CAH-TOA?  
thx…

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [May 4, 2003, 5:19am UTC](https://forum.kirupa.com/t/sin-1-in-flash-how/20023/2 "2003-05-04T05:19:25Z")

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Math.asin()

Math.acos()

Math.atan()

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [May 4, 2003, 5:25am UTC](https://forum.kirupa.com/t/sin-1-in-flash-how/20023/3 "2003-05-04T05:25:32Z")

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its SOH…just incase 🙂