How do i get the arg(A(j)) and I A(j) I of an equation?

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jey sun
jey sun 2014-3-25
编辑： Mischa Kim 2014-3-25
I have the following equation of A= ((1+2j) / ((6j^4)+(8j^3)+(2j^2)+(7j)+2 ) and need to get it in the terms of A(j) and arg(A(j))
I'm a beginner in matlab and am still not sure of the code for this.

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Mischa Kim
Mischa Kim 2014-3-25
编辑：Mischa Kim 2014-3-25
Jey, use abs(A) and phase(A) (or angle(A)):
A = (1+2j)/((6j^4)+(8j^3)+(2j^2)+(7j)+2);
abs(A)
ans =
0.001609781751232
phase(A)
ans =
1.479232834161942
angle(A)
ans =
1.479232834161942

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