I have a phase angle at some amplitude, Please check the image i attached , why is it not getting plotted at particular Angle? I have pasted my code as well,,,anyone help

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L K
L K 2017-3-18
评论： Image Analyst 2017-3-18
phase = 26.52867848 amp = 0.463647609 theta_rad = phase ; polar(theta_rad, amp, 'r.');
Output is
: See the red dot,, it should have got plotted at 26 Degree at that particular AMP(Radius)...What is the prob ?

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Star Strider
Star Strider 2017-3-18
It is plotting correctly (the red dot at about 80°) if ‘phase’ is actually in radians. If it’s in degrees and you want to convert it to radians, do the conversion first:
phase = 26.52867848;
amp = 0.463647609;
theta_rad = phase*pi/180; % Degrees-To-Radians
polar(theta_rad, amp, 'r.')
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Image Analyst
Image Analyst 2017-3-18
By the way, polar() is deprecated. They recommend you start using polarplot() from now on, if you have R2016a or later.
You might also find deg2rad() or cart2pol() helpful.

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