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Idle Banter For non SV and non bike related chat (and the odd bit of humour - but if any post isn't suitable it'll get deleted real quick). There's also a "U" rating so please respect this. Newbies can also say "hello" here too. |
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30-09-06, 01:44 PM
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#1 |
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Guest
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Little help...
Is anyone here bloody dam good at maths? I need some help with rearanging an equation (the Karplus equation)...it has a trigonomical function in it which im having trouble with
 Matt |
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30-09-06, 03:11 PM
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#2 |
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Guest
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Googled Karplus equation and came up with this.
 J(φ) = A * cos2(φ − 60) − B * cos(φ − 60) + C What about it?
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30-09-06, 03:20 PM
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#3 |
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Guest
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mmm i'm thick so pointless asking me
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30-09-06, 03:25 PM
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#4 |
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Whats the equation and what do u want it rearraging to?
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30-09-06, 06:01 PM
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#5 |
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Guest
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Sounds like you need to PM Prof. He should be pretty good on that sort of thing if its Maths stuff.
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30-09-06, 06:35 PM
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#6 |
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I'm fairly certain that, in most cases, 2 + 2 = 4...
... except for all those times when it seems to only make 3. Oh yeah, and that one in a million chances often come up nine times out of ten. 
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30-09-06, 06:38 PM
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#7 |
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Guest
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dont look at me.. Im in the same boat as K.. 2 + 2 = -5 most times with me...
 if I want to get 4.. Ive got to cheat!
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30-09-06, 08:39 PM
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#8 |
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Guest
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I can legitimately get 2 + 2 to equal 10 or 11* though it probably doesnt help... :P
 * base 4 and base 3 |
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30-09-06, 09:10 PM
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#9 |
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Member
Mega Poster
Join Date: Jan 2005
Location: Barnet Herts
Posts: 5,071
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One and one is one.
If you listened to Medicine Head in the 70s oops showing me age there. 
__________________
On a clear day we stand there and look further than the ordinary eye can see. |
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01-10-06, 12:57 PM
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#10 | |
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Guest
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Quote:
J = A * cos^2(dihedral angle) - 0.28 I need to find an expression for the dihedral angle term - the cosine function is giving me greif Matt |
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