[Date Index]
[Thread Index]
[Author Index]
Re: How to simplify ArcSin formula
*To*: mathgroup at smc.vnet.net
*Subject*: [mg123285] Re: How to simplify ArcSin formula
*From*: Dana DeLouis <dana01 at me.com>
*Date*: Wed, 30 Nov 2011 03:21:33 -0500 (EST)
*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com
> The answer I know is xxx = 0...
I don't believe it's true for all cases of t.
aa=1/2;
xxx = t+ArcSin[aa]-ArcSin[aa Cos[t]+Sqrt[1-aa^2] Sin[t]];
Maybe for a small range...
xxx/. t->1. //Chop
0
However...
xxx/. t->2.
1.9056
xxx/. t->3.
3.9056
xxx/. t->4.
5.9056
= = = = = = = = = =
HTH
Dana DeLouis
= = = = = = = = = =
On Nov 29, 7:06 am, David Sagan <david.sa... at gmail.com> wrote:
> I am trying to discover how to simplify xxx where xxx is defined to
> be:
> xxx= t + ArcSin[aa] - ArcSin[aa Cos[t] + Sqrt[1 - aa^2] Sin[t]]
> with
> -1 < aa < 1
> The answer I know is xxx = 0 but the reason I am posing the question
> is that I am interested in finding out, in general, how to manipulate
> formulas of this type. I tried:
> FullSimplify[xxx, -1<a<1]
> but that did not work. Can anyone tell me how to do this?
>
> -- Thanks, David
Prev by Date:
**A function to do incomplete LU decomposition with a drop tolerance?**
Next by Date:
**Re: how to get string in sci. notation to a number?**
Previous by thread:
**Re: How to simplify ArcSin formula**
Next by thread:
**Re: How to simplify ArcSin formula**
| |