Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.soft-sys.math.mathematica > #1371 > unrolled thread

Trigonometry

Started byMichaël ELBAZ <mielbaz@gmail.com>
First post2011-04-01 07:30 +0000
Last post2011-04-16 11:35 +0000
Articles 4 — 4 participants

Back to article view | Back to comp.soft-sys.math.mathematica


Contents

  Trigonometry Michaël ELBAZ <mielbaz@gmail.com> - 2011-04-01 07:30 +0000
    Re: Trigonometry WetBlanket <wyvern864@gmail.com> - 2011-04-02 07:49 +0000
    Re: Trigonometry David Bailey <dave@removedbailey.co.uk> - 2011-04-02 07:53 +0000
    Re: Trigonometry Peter Pein <petsie@dordos.net> - 2011-04-16 11:35 +0000

#1371 — Trigonometry

FromMichaël ELBAZ <mielbaz@gmail.com>
Date2011-04-01 07:30 +0000
SubjectTrigonometry
Message-ID<in3uvd$hqe$1@smc.vnet.net>
Hello,

With the input "(Cos[x])^2 + (Sin[x])^2", can we get the output "1" ?!

Thanks

-- 
M.E.

[toc] | [next] | [standalone]


#1402

FromWetBlanket <wyvern864@gmail.com>
Date2011-04-02 07:49 +0000
Message-ID<in6kf7$2hs$1@smc.vnet.net>
In reply to#1371
On Apr 1, 1:30 am, Micha=EBl ELBAZ <miel...@gmail.com> wrote:
> Hello,
>
> With the input "(Cos[x])^2 + (Sin[x])^2", can we get the output "1" ?!
>
> Thanks
>
> --
> M.E.

Use

exp = "(Cos[x])^2 + (Sin[x])^2;
exp/. c_.Sin[x_]^2+c_.Cos[x_]^2->c

[toc] | [prev] | [next] | [standalone]


#1420

FromDavid Bailey <dave@removedbailey.co.uk>
Date2011-04-02 07:53 +0000
Message-ID<in6klh$2ks$1@smc.vnet.net>
In reply to#1371
On 01/04/2011 08:30, Michaël ELBAZ wrote:
> Hello,
>
> With the input "(Cos[x])^2 + (Sin[x])^2", can we get the output "1" ?!
>
> Thanks
>
In[622]:= (Cos[x])^2 + (Sin[x])^2//Simplify

Out[622]= 1

David Bailey
http://www.dbaileyconsultancy.co.uk

[toc] | [prev] | [next] | [standalone]


#1715

FromPeter Pein <petsie@dordos.net>
Date2011-04-16 11:35 +0000
Message-ID<iobutk$bda$1@smc.vnet.net>
In reply to#1371
Am 01.04.2011 09:30, schrieb Michaël ELBAZ:
> Hello,
>
> With the input "(Cos[x])^2 + (Sin[x])^2", can we get the output "1" ?!
>
> Thanks
>
just to name a few other:

In[1]:= #1[Cos[x]^2 + Sin[x]^2]& /@
  {Simplify, FullSimplify, TrigReduce, TrigExpand, TrigFactor, TrigToExp}
Out[1]= {1,1,1,1,1,1}

Peter

[toc] | [prev] | [standalone]


Back to top | Article view | comp.soft-sys.math.mathematica


csiph-web