Negative Magnitude Phasor Presentation: Is Erasing the - Sign Correct?

[fbenit1]

If you have a phasor that has a negative magnitude (ie -3<38degrees) what is the best presentation. I believed it was just erasing the - sign and adding or subtracting 180degrees. Correct me if wrong

 

[sophiecentaur]

That's right - just remember the resultant phase angle would lie between +/-180 degrees (or 0 and 360, if that's the way you want to do it) - so you may need to do some modulo arithmetic in some cases.

 

[sumit sawai]

you are right