#### Topic: Abnormal program termination

I entered a formula and then inserted the tangent of it, but I got an error saying "Abormal program termination" and Graph was terminated indeed without any saving. After some trial-and-error, I found out that I get this error every time when inserting a tangent with From set to a number >=10. I would be grateful if you could look at it and perhaps provide a solution.

The formula I used:

((x-10)/7.5)^2+1.1

I inserted the tangent at x=10, also beginning from 10.

Some screenshots to make it perhaps somewhat clearer: