Prime: Fraction dependent on FIX setting

[Terje Vallestad]

Hi,

Whilst demonstrating the Fractions key to my daughter I happened to have my calculator set to FIX 2. The number on the display was 1.25 and cycling through the varieties of fractional display I was surprised to see;

   

(Preview does not show the picture, so to be sure the display shows 1.25 on level 4, 4/3 on level 3, 1+1/3 on level 2 and 1°15' on level 1)

Using Shift Fractions however seems to give the expected result 1°15'
Same result using the Virtual Calculator on my computer.

I could not find any reference to this behaviour in the user manual nor any previous report on the forum. I have the latest firmware installed on both the calculator and the Virtual Calculator. Whilst I can understand that this has something to do with rounding off, I do not see why the effect should not be evident for both Shifted and Un-shifted Fractions key.

Is this a bug or an undocumented feature?

Cheers, Terje