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Old 16-01-07, 07:27 AM   #21
furrybean
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Quote:
Originally Posted by Fearg
Quote:
Originally Posted by furrybean
Minter, well I now know they dont make up the qu themselves.

What book is that?

Cheers
Higher Engineering Mathematics by John Bird

what are you studying?
Electrical Engineering. What were you studying?
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Old 16-01-07, 08:34 AM   #22
Fearg
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Quote:
Originally Posted by furrybean

Electrical Engineering. What were you studying?
Mechanical Engineering
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Old 16-01-07, 08:52 AM   #23
thor
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I did that stuff when I was 17. Shame I've forgotten all of it...
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Old 16-01-07, 09:02 AM   #24
Alpinestarhero
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Mmmm maths, highly sexy subject.

Not good with hyperbolic functions; remind me what they look like on a graph though? Maybe I can have a go after my exams are finished (when does it need to be done by, and whats it for?).

Matt
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Old 16-01-07, 09:03 AM   #25
Alpinestarhero
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Default Re: Hyperbolic Functions

Quote:
Originally Posted by Jabba
Quote:
Originally Posted by Fearg
sin3θ = 3sinθ - 4sin^3θ

substituting jA for θ gives

sin3jA = 3sinjA - 4sin^3jA

since sinjA = jsinhA

jsinh3A = 3jsinhA - 4j^3sinh^3A

divding thorough by j gives

sinh3A = 3sinhA - 4j^2sinh^3A

but as j^2 = -1

sinh3A=3sinhA+4sinh^3A
Geek alert
Maths is a wonderful subject, masters of it should be worshiped as gods

Matt
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Old 16-01-07, 08:16 PM   #26
furrybean
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BTW it WAS cubed!!!!
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Old 16-01-07, 08:45 PM   #27
Fearg
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