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Topic: how do i unwrap 'arcsin' function?
Replies: 4   Last Post: Jun 2, 2012 1:26 PM

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flying

Posts: 10
Registered: 4/13/12
Re: how do i unwrap 'arcsin' function?
Posted: Jun 1, 2012 10:56 PM
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"Matt J" wrote in message <jqb26t$dm0$1@newscl01ah.mathworks.com>...
> "flying" wrote in message <jqarl1$dkk$1@newscl01ah.mathworks.com>...
> > Hi all!
> > i've encountered a problem.As we know the range of 'arcsin' in matlab is -pi/2~pi/2.
> > if we do asin(sin(t)),t= 0:10;we get an wrap answer,but now i want to retrieve the 't',how can i get the original 't'? Thank you!

> ========
>
> You cannot, due to sin(t) not being 1-1.



the range of 't' is 0~10 and my target is retrieving 't'



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