tan() has degraded precision in the Calculation app. about epsilon

[pitonyak]

I have verified the behavior.

First, I tested using LibreOffice Calc and I received a similar (but different) value (1285230487114206). Then I tried on my HP Prime in both Home and CAS mode, which returned different negative numbers (like -74 and -54 or similar), probably based on the HP precision.

I do see that NumWorks should be using double precision (see https://www.numworks.com/calculator/update/version-01).

I then tested to receive undef from the standard calculator and from Python I now see 1285230487114250, so 0.2 greater than in the example above.

I am curious if the problem is related to converting the input or in the calculation library.