No minimum or maximum found

[mbeddo]

I was experimenting with an LCR circuit. If you follow the steps given below, the virtual calculator crashes but the physical calculator reports "No minimum or maximum found" but is otherwise happy.

1. open the Function app
2. enter "R:=1000", "L:=0.01", "C:=120E-12" in calculator mode.
3. go to Symb view
4. set F1 to "R+(X*L*i)+1/(X*C*i)", where "i" is Shift+2. Uncheck F1 - we won't plot it.
5. set F2 to "(1/(F1(X)*CONJ(F1(X))))^0.5" and make sure it is checked - we will plot it.
6. Shift+Plot to set Xmin=0, Xmax=3E6, Ymin=0, Ymax=0.002, Xtick=1E5, Ytick=0.0001
7. go to Plot view. You should see the resonance curve.
8. On the plot screen, press "Menu", then "Fcn", then "Extremum"

There is definitely a peak, but the calculator reports no extremum found (see screenshot attached). The virtual calculator program crashes.

Software version 2014.12.3 (6975)