DeadlyAvenger
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« on: April 02, 2010, 12:09:13 PM » |
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I have a maths formula I need to re-arrange, but I'm struggling with it as it's been a while since I've actually had to use my brain at uni so I was hoping one of you very clever people could sort it out for me  L/X = (cos (45 - theta)) / (cos (theta + alpha)) I need to rearrange that to find theta. L & alpha are constants and X is known. Thanks |
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Torgue
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« Reply #1 on: April 02, 2010, 12:13:10 PM » |
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I have a maths formula I need to re-arrange, but I'm struggling with it as it's been a while since I've actually had to use my brain at uni so I was hoping one of you very clever people could sort it out for me L/X = (cos (45 - theta)) / (cos (theta + alpha)) I need to rearrange that to find theta. L & alpha are constants and X is known. Thanks |
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 COFFEEE POT WHY!
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DeadlyAvenger
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« Reply #2 on: April 02, 2010, 12:30:12 PM » |
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I have a maths formula I need to re-arrange, but I'm struggling with it as it's been a while since I've actually had to use my brain at uni so I was hoping one of you very clever people could sort it out for me L/X = (cos (45 - theta)) / (cos (theta + alpha)) I need to rearrange that to find theta. L & alpha are constants and X is known. Thanks I know what you were getting at...but a) that site doesn't list the trigonometric addition formulae and b) I still can't rearrange it when I make the substitution. It's my inability to rearrange equations that's failing here - not my ability to google |
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Tommy the Cat
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« Reply #4 on: April 02, 2010, 01:57:34 PM » |
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As a near philosophy graduate, I feel I can use my expertise to help:
That shit don't exist, yo.
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And tommy you have above average intelligence ▬▬▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬▬▬▬▬ ＳＨＵＴ ＵＰ ＡＮＤ ＥＮＪＯＹ ＴＨＥ CＡＴ！ ▬▬▬▬▬▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬▬▬▬▬▬▬▬▬ |
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Lazzars
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« Reply #5 on: April 02, 2010, 02:21:59 PM » |
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As a near philosophy graduate, I feel I can use my expertise to help:
That shit don't exist, yo.
as a near film making graduate i would also like to help Durr, numbers? |
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r007
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« Reply #6 on: April 02, 2010, 05:21:22 PM » |
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Oookay, Quoting Maple 11: theta = - alpha + arctan( L - X cos( alpha + 45 ) / X sin ( alpha + 45 ) ) Maybe it helps you find the transforms. My brain shut down in self-defence some math classes ago. |
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discordance
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« Reply #7 on: April 03, 2010, 03:27:20 AM » |
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Brahms
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« Reply #8 on: April 03, 2010, 11:04:39 AM » |
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That wolfram answer is scary looking.
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Officer Dibble
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« Reply #9 on: April 03, 2010, 06:49:25 PM » |
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Eh, i've seen worse. Not that I can remember any Maths now  |
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CruelCow
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Move along. Nobody suspicious is here.
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« Reply #10 on: April 03, 2010, 07:43:29 PM » |
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I'm surprised it can't do better. Normally it solves my problems quite nicely.
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Magathery
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« Reply #11 on: April 04, 2010, 01:12:13 AM » |
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I just about got my head around simutanius equations many years ago. I felt that as soon as you start running out of numbers and have to start using letters to do a maths problem, that there was something very wrong going on. The whole plus/minus stuff took a bit of getting my head around. I had to think of it of some one too lazy to write out two separate equasions. On a slightly different note, there has never been an occation for me to use sine, cosine or tangent in my every day life. So I wonder why the hell an entire term was devoted to it in GCSE maths?
Good luck with finding theta Deadly
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 May the Fluke be with you... |
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claws
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« Reply #12 on: April 04, 2010, 11:33:51 AM » |
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I'm sure therés a special theta out there for us all, we just have to find her (or him).
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Brahms
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« Reply #13 on: April 04, 2010, 11:42:44 AM » |
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I think on this forum it's mostly him.
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CruelCow
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Move along. Nobody suspicious is here.
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« Reply #14 on: April 04, 2010, 08:38:03 PM » |
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