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 Author Comment/Response Rick Hladik 10/15/00 08:36am This is the clarification to a previous question which was unanswered due to lack of information Please see the following example: A is a 3 component vector In:=A = Table[x^i, {i, 3}] Out:={x, x^2, x^3} B is a 3 X 3 matrix In:= B = Table[Integrate[(Ai)(Aj),{x,0,1}],{i,3},{j,3}] Out:= {{{1/3},{1/4},{1/5}},{{1/4},{1/5},{1/6}},{{1/5},{1/6},{1/7}}} In:=Inverse[B] Out:= ''Argument {{{1/3},{1/4},{1/5}},{{1/4},{1/5},{1/6}},{{1/5},{1/6},{1/7}}} at position 1 is not a rectangular matrix'' This is not true! The matrix is rectangular.....This can be easily proven by simply typing in the same values for a manually input matrix and then inverting it....the answer is: In:= Use the matrix input for a 3 X 3 matrix with the values identical to the above In:=Inverse[B] Out:={{300,-900,630},{-900,2880,-2100},{630,-2100,1575}} It is important that I understand the problem with the above solution.....Please reply by E-mail if you need more information, Thanks....Rick URL: ,

 Subject (listing for 'Inverting a formula derived matrix') Author Date Posted Inverting a formula derived matrix Rick Hladik 10/15/00 08:36am Re: Inverting a formula derived matrix Forum Modera... 10/15/00 09:35am
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