Prev: reassigning values of elements in matrix
Next: why is the profiler so slow on a Mac ??
From: Vladimir Bondarenko on 16 Jul 2010 14:26
It calculates

Integrate[1/(Sin[2 z]/2)^193, z]

but returns

Integrate[1/(Sin[z] Cos[z])^193, z]

unevaluated.

Cheers,

Vladimir Bondarenko

Co-founder, CEO, Mathematical Director

http://www.cybertester.com/ Cyber Tester Ltd.

----------------------------------------------

"We must understand that technologies
like these are the way of the future."

----------------------------------------------
----------------------------------------------
From: Chip Eastham on 16 Jul 2010 14:35
On Jul 16, 2:26 pm, Vladimir Bondarenko <v...(a)cybertester.com> wrote:
> It calculates
>
>    Integrate[1/(Sin[2 z]/2)^193, z]
>
> but returns
>
>    Integrate[1/(Sin[z] Cos[z])^193, z]
>
> unevaluated.
>
> Cheers,
>
> Vladimir Bondarenko
>
> Co-founder, CEO, Mathematical Director
>
> http://www.cybertester.com/ Cyber Tester Ltd.
>
> ----------------------------------------------
>
> "We must understand that technologies
> like these are the way of the future."
>
> ----------------------------------------------
> ----------------------------------------------

Judging by the results in Wolfram Alpha, it
takes a wrong turn by expressing the second
integrand in powers of secant and cosecant.

However if you ask it to simplify/express
sin(2x) - 2*sin(x)*cos(x), it gives 0 as the
preferred result.

regards, chip
 | 
Pages: 1
Prev: reassigning values of elements in matrix
Next: why is the profiler so slow on a Mac ??