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#1 2009-09-28 21:33:46
- Ssbrawl700
- Scratcher
- Registered: 2009-02-11
- Posts: 100+
What's sin and cos
What do they mean because i am completely clueless. Also how can they be used in a project?
thanks
Can you beat the ever-so challenging Keyboard Khaos?
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#2 2009-09-28 21:37:27
Re: What's sin and cos
They can be used for multi directional scrolling. I'm not sure what they mean though. Sorry. 
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#3 2009-09-28 21:39:15
Re: What's sin and cos
Sin is the abbreviation for sine, and cos is the abbreviation for cosine. They are trigonometry terms, also related to tan (tangent). They are related to triangles:
Sine=opposite side/hypotenuse
Cosine=adjacent side/hypotenuse
Tangent=opposite side/adjacent side.
Last edited by The-Whiz (2009-09-28 21:41:20)
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#4 2009-09-28 21:40:53
Re: What's sin and cos
I give you what they're used for.
Whiz tells you what they are!
Works for me. 
I never knew about CAH TOA and SOH...
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#5 2009-09-28 21:42:34
Re: What's sin and cos
It's a mnemonic feature, SOHCAHTOA.
You can move without using the <move( 10 )steps>[/blocks] block.
Code:
[change x by (([sin] of (direction) * (steps to take))] [change y by (([cos] of (direction) * (steps to take))]
Last edited by The-Whiz (2009-09-28 21:44:53)
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#6 2009-09-28 21:44:49
Re: What's sin and cos
Interesting...
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#7 2009-09-28 21:46:53
- floppy_gunk
- Scratcher
- Registered: 2008-11-14
- Posts: 500+
Re: What's sin and cos
They are also used for converting from Cartesian coordinates to Polar coordinates, and vice versa.
Get it now! 
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#8 2009-09-28 21:48:57
Re: What's sin and cos
There's also asin (arcsine), acos (arccosine), and atan (arctangent), but those are much more complicated. The arc(functions) convert a sin, cos, or tan back to angular form.
Last edited by The-Whiz (2009-09-28 21:50:02)
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#9 2009-09-29 14:59:02
- Ssbrawl700
- Scratcher
- Registered: 2009-02-11
- Posts: 100+
Re: What's sin and cos
Alright thanks guys that was a big help!
Last edited by Ssbrawl700 (2009-09-29 14:59:53)
Can you beat the ever-so challenging Keyboard Khaos?
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#10 2009-09-29 15:16:21
Re: What's sin and cos
You're welcome!
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#11 2009-09-29 21:20:04
Re: What's sin and cos
They are mainly used to figure out sides/angles of a right traingle.
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#13 2009-09-30 15:11:25
Re: What's sin and cos
mancolors wrote:
They are used in things like radio waves, ac signals.
No, they are not.
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