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 Unit of phase obtained from fft1		  New Topic  Reply to Topic
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tbarrou

France
36 Posts
Posted - 03/09/2015 :  11:17:09 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver. and Service Release (Select Help-->About Origin): 2015 SR2
Operating System: win7 latest patch.

Hello,
from results obtained with the fft1 function, it seems to me that the phase is given in degree. However, my preference in Option:NumericFormat is Radian.
I have not found in help neither in the forum a clear statement about the unit of phase after fft1.

could you confirm it is given degrees ?

Thanks a lot
Regards,

Echo_Chu

China
Posts
Posted - 03/10/2015 :  10:43:52 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hi,

Yes, The results in FFT1 tool are given in degree. The angular unit setting in the Options Dialog affects all trigonometric functions computed using LabTalk but not results in FFT1.

If you want radians for your FFT1 result, you can use the Radians function in set column values dialog to convert degree to radians.

http://www.originlab.com/doc/LabTalk/ref/Radians-func

Echo
OriginLab
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