Code review comment for lp:~gang65/ubuntu-calculator-app/ubuntu-calculator-app-round-fix

Thanks Riccardo.
Changing to BigNumber do not causing longer numbers.

Truncating numbers will not help with all cases: for example long formula.
My idea was to use few lines to display history: If formula is short then we will display it in one row, if not we will use few rows.

I will create bug report regarding to that.
I think we need analyse possible solutions, and select one which fit our need the best.