How to simplify a complex matrix

28 Mar 2016
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Answer Accepted
Updated 28 Mar 2016
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I am having a polynomial matrix as an e.g.,
A= [1, 0; 0, ((2098771722748011756657413967615*z^2)/2535301200456458802993406410752 - (7700501052346207801164205137339*z)/5070602400912917605986812821504 - 10387006882955487611545293966533/20282409603651670423947251286016]

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 Accepted Answer

Walter Roberson
Walter Roberson on 28 Mar 2016

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When you enter numbers like that, they will be converted to double precision, which does not have enough precision for you. You need to change the numbers to symbolic.
syms z
A = [1, 0; 0, ((sym('2098771722748011756657413967615')*z^2) / sym('2535301200456458802993406410752') - (sym('7700501052346207801164205137339')*z) / sym('5070602400912917605986812821504') - sym('10387006882955487611545293966533/20282409603651670423947251286016')]

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