Thanks for answer,
> this is not an algebraic equation, since it has abs.
> try solving with + and with - sign separately.
But z and c are complex numbers so abs has diffrent meaning then
abs(real_number)
Also you might find you
> can
> solve ( ...., [z,c]);
I have tried with the same result
solve([z=z4+2*c*z2+c2+c, abs(4*z3+4*c*z)=%e^%i], [z,c]);
Adam
>
>
>
>> -----Original Message-----
>> From: maxima-bounces at math.utexas.edu
>> [mailto:maxima-bounces at math.utexas.edu] On Behalf Of Adam Majewski
>> Sent: Monday, August 11, 2008 2:45 PM
>> To: maxima at math.utexas.edu
>> Subject: system of equations
>>
>> I'm trying to solve system of equations for c:
>>
>> z=z^4+2*c*z^2+c^2+c
>> abs(4*z^3+4*c*z)=%e^%i
>>