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Topic: solving simultaneous equations with complex numbers
Replies: 1   Last Post: Jul 8, 2013 2:30 AM

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 Adam Chapman Posts: 172 Registered: 1/12/09
solving simultaneous equations with complex numbers
Posted: Jul 6, 2013 4:24 PM

I have an equation of the form AX=B.

A=[-0.0002-6.6659i -0.0044-6.6830i
0.0035-6.6548i -0.0049-6.6845i
-0.0049-6.6845i 0.0110-6.6264i
0.0075+16.6867i -0.0074+16.3202i
0.0074+16.3595i -0.0072+15.9402i
-0.0075+16.6466i 0.0074+16.3595i]

B=[ 0
-0.0024-0.0011i
0.4502+0.0079i
-0.0528+0.0306i
-0.0610+0.0213i
-0.0364+0.0373i]

If I try to find a value for X using "X=A\B", then calculate "B2=A*X"

B2 is not equal to the original value of B.

I've also tried "X=linsolve(A,B)", which returns a different value for X, by again calaulting A*X does not return the original value of B.

I've been trying to work this out for a few hours but have no idea what's causing this strange behaviour.

Any help is massively appreciated.