what the difference between the phase and arctan?

조회 수: 55 (최근 30일)
Aisha Mohamed
Aisha Mohamed . 2022년 10월 1일
댓글: Aisha Mohamed . 2022년 10월 1일
Hi all
When z=x+iy.
I know (if I am correct ) that tan^-1(y/x) = arctan(y/x) =atan(y/x) = atan2(y,x) we use these expression to find the angle (theta) that calculateing from the positive real axis to the vector between the origen and the point z.
I am really confuse with the phase(z) , I read that
the phase(z)= arctan(y/x) whih the diference that ,
arctan takes values in ]−π/2,π/2[ while the phase is generally defined over ]−π,π].
Is this correct please?
I appriciate any help

채택된 답변

Torsten 2022년 10월 1일
phase(z) = atan2(imag(z),real(z))
Read the documentation for atan2 to find the differences to the usual atan function:

추가 답변 (0개)


Help CenterFile Exchange에서 Stability Analysis에 대해 자세히 알아보기


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by