http://www.mapleprimes.com/questions/97634-How-Do-I-Populate-A-Matrix-Of-Matrices-In-Maple en-us 2026 Maplesoft, A Division of Waterloo Maple Inc. Maplesoft Document System Wed, 10 Jun 2026 16:16:26 GMT Wed, 10 Jun 2026 16:16:26 GMT The latest answers and comments added to the Question, How do I populate a matrix of matrices in Maple? http://www.mapleprimes.com/images/mapleprimeswhite.jpg http://www.mapleprimes.com/questions/97634-How-Do-I-Populate-A-Matrix-Of-Matrices-In-Maple http://www.mapleprimes.com/questions/97634-How-Do-I-Populate-A-Matrix-Of-Matrices-In-Maple?ref=Feed:MaplePrimes:How do I populate a matrix of matrices in Maple?:Comments#answer97639 <p>Assuming some of those products really are nonzero (and you're using Multiply in the LinearAlgebra package rather than "multiply"), that ought to work.&nbsp; Maybe if you uploaded your worksheet we could spot the problem.</p> <p>Assuming some of those products really are nonzero (and you're using Multiply in the LinearAlgebra package rather than "multiply"), that ought to work.&nbsp; Maybe if you uploaded your worksheet we could spot the problem.</p> 97639 Fri, 08 Oct 2010 23:26:45 Z Robert Israel Robert Israel http://www.mapleprimes.com/questions/97634-How-Do-I-Populate-A-Matrix-Of-Matrices-In-Maple?ref=Feed:MaplePrimes:How do I populate a matrix of matrices in Maple?:Comments#answer97641 <p>Change</p> <pre>T[i,j]:= Matrix(7)</pre> <p>to</p> <pre>T:= Matrix(7)</pre> <p>Notice also that you are not suppressing printing of output when you create the empty (all-zero) initial T with the Matrix() call. That's why an all-zero Matrix gets printed by part of your issued commands. But your double do-loop won't get its actions displayed, under default printlevel. So just call</p> <pre>T;</pre> <p>after your loop, to see how it worked.</p> <p>For what it's worth, you could also do it this way</p> <pre>T := Matrix( 7, (i,j)-&gt;multiply(monoid[i],monoid[j]) );</pre> <p>Change</p> <pre>T[i,j]:= Matrix(7)</pre> <p>to</p> <pre>T:= Matrix(7)</pre> <p>Notice also that you are not suppressing printing of output when you create the empty (all-zero) initial T with the Matrix() call. That's why an all-zero Matrix gets printed by part of your issued commands. But your double do-loop won't get its actions displayed, under default printlevel. So just call</p> <pre>T;</pre> <p>after your loop, to see how it worked.</p> <p>For what it's worth, you could also do it this way</p> <pre>T := Matrix( 7, (i,j)-&gt;multiply(monoid[i],monoid[j]) );</pre> 97641 Fri, 08 Oct 2010 23:45:52 Z pagan pagan