Inconsistent Deg/Rad in CAS

[GregP]

Thank you.

I was using build 2.1.14425 (2020 1 16). It appears that the older version probably worked correctly. rolinychupetin on youtube (Canadian professor of electrical engineering) has youtube videos on using the HP Prime for complex numbers and systems of equations where it also appears to work properly in 2017. For instance https://www.youtube.com/watch?v=NUGfqiLOelc

In electrical engineering conventions for use of phasors in AC circuits going all the way back to Steinmetz and his buddy Einstein, oftentimes AC frequencies in radians are mixed with phase offsets in degrees - weird but very common.