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| From | Joe Riel <joer@san.rr.com> |
| Newsgroups | comp.soft-sys.math.maple |
| Subject | Re: Test for Matrix type |
| Date | Fri, 23 Sep 2011 07:45:17 -0700 |
| Organization | A noiseless patient Spider |
| Lines | 39 |
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| References | <9e32joFto3U1@mid.individual.net> <j5i3dm$qsf$1@news.albasani.net> |
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rouben@shady.(none) (Rouben Rostamian) writes:
> In article <9e32joFto3U1@mid.individual.net>,
> Rainer Rosenthal <r.rosenthal@web.de> wrote:
>>restart:
>>with(LinearAlgebra):
>>A := Matrix([[1,2],[3,4]]);
>>if type(A,integer) then
>> print("I'd be suprised");
>>else
>> print("I thought so.");
>>fi;
>>if type(A,MatrixType) then
>> print("I'd be glad");
>>else
>> print("Oops, why not?");
>>fi;
>>
>>Is there a nice substitute for "MatrixType"?
>
> Yes, try "Matrix", as in:
>
> if type(A,Matrix) then
> print("I'd be glad");
> else
> print("Oops, why not?");
> fi;
For the first conditional, use the following form (see ?type,Matrix):
if type(A,'Matrix(integer)') then
print("I'd be suprised");
else
print("I thought so.");
fi;
"I'd be surprised"
--
Joe Riel
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Test for Matrix type Rainer Rosenthal <r.rosenthal@web.de> - 2011-09-23 11:42 +0200
Re: Test for Matrix type rouben@shady.(none) (Rouben Rostamian) - 2011-09-23 14:00 +0000
Re: Test for Matrix type Joe Riel <joer@san.rr.com> - 2011-09-23 07:45 -0700
Re: Test for Matrix type Rainer Rosenthal <r.rosenthal@web.de> - 2011-09-23 17:03 +0200
Re: Test for Matrix type Rainer Rosenthal <r.rosenthal@web.de> - 2011-09-23 16:46 +0200
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