On Feb 17, 2012, at 18:43 , Asst. Prof. Dmitrii (Dima) Pasechnik wrote:
> Hi Stephan,
>
> On 18 February 2012 06:43, Stefan Kohl <ste...@mcs.st-and.ac.uk> wrote:
>> Dear Forum,
>>
>> Rohit Gupta asked:
>>
>>> One of the exercises ( um, by Stephen Kohl I think ) gives the following
>>> solution for drawing an Ulam spiral of primes. I am not sure whether the
>>>
>>> "SaveAsBitmapPicture"
>>> function requires a special package. Does it?
>>
>> And Dmitrii Pasechnik answered:
>>
>>> this needs RCWA package installed and loaded.
>>
>> Only this is true.
>>
>>> And it in turn needs a slew of other packages, such as anluth, which
>>> in turn needs Kant, and the latter is not even possible to install on some
>>> systems...
>>
>> However this statement is plainly wrong -- the RCWA package is part of
>> the standard GAP distribution (thus if you have GAP you also have RCWA),
>> and it can be loaded and used without any problems, under any operating
>> system for which GAP is available. -- Just enter "LoadPackage("rcwa");".
>> Possible warnings from other packages (non-compiled binaries etc.) can
>> savely be ignored, as they have no influence on the functionality of RCWA.
>
> RCWA requires Polycyclic, according to its readme.
>
> README of Polycyclic says:
> To have the full functionality of the package available you need the
> GAP 4 package Alnuth and the Computer Algebra System Kant installed.
> Its init.g has the line
> RequirePackage("alnuth");
>
> In turn, Alnuth 2.3.1 *appears* to require KASH.
> KASH is not available on MacOSX 10.6.
Not strictly true:
23095 kash justin 0.0 2 11.3 MB 240 KB 224.3 MB PowerPC
428 iTunes Helper justin 0.0 4 9.0 MB 6.2 MB 126.3 MB Intel (64 bit)
(Mac Pro, Dual 6-core Xeon, Mac OS X, 10.6.8). I must have found Rosetta
somewhere :-}
Justin
--
Justin C. Walker
Director
Institute for the Enhancement of the Director's Income
--
Fame is fleeting, but obscurity
just drags on and on. F&E
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