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Solving cubic equation with imaginary numbers

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jayvoor
jayvoor el 2 de Dic. de 2022
Comentada: jayvoor el 2 de Dic. de 2022
Hi everyone
I want to solve this equation by multiplying these variables with imaginary numbers and get clear result with s variable and output is in some weird form. What's wrong?
My code below .
clc;
clear;
s1 = 133.9457 + 253.416i
s2 = 133.9457 - 253.416i
s3 = 1339.457
syms s
x = solve(0.00017493*(s-s1)*(s-s2)*(s-s3))
Thanks in advance

Respuesta aceptada

Stephan
Stephan el 2 de Dic. de 2022
Editada: Stephan el 2 de Dic. de 2022
s1 = 133.9457 + 253.416i;
s2 = 133.9457 - 253.416i;
s3 = 1339.457;
syms s
x_exactly = solve(0.00017493*(s-s1)*(s-s2)*(s-s3))
x_exactly = 
x_numeric = double(x_exactly)
x_numeric =
1.0e+03 * 1.3395 + 0.0000i 0.1339 - 0.2534i 0.1339 + 0.2534i
  3 comentarios
Stephan
Stephan el 2 de Dic. de 2022
s1 = 133.9457 + 253.416i;
s2 = 133.9457 - 253.416i;
s3 = 1339.457;
syms s
x_exactly = expand(0.00017493*(s-s1)*(s-s2)*(s-s3))
x_exactly = 
jayvoor
jayvoor el 2 de Dic. de 2022
Thank you very much!! Have a good day sir :)

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