Multiple roles calculator.
# The calculations and results appear to be recorded in the Roll Paper.
# Seems to contain more than one calculator.
# You can calculate tax and units.
# Rewind the roll can be undone.
# You can keyboard layout the to your liking.
# The paid version is ad-free, further stability-oriented.
# Standard configuration
Display digits: 15 digits maximum
Arithmetic functions: arithmetic only
Drum Number: 2
Calculation method: expression calculator
Number of decimal places: 3
Rounding fractions: even rounding (ISO rounding, Banker's rounding)
Internal Processing: 60-digit decimal arithmetic (fixed-point system)
Number of drums: Up to 5
Calculation methods: arithmetic formula or expression calculator
Decimal digits: 0 and 5 F (up to 15 digits)
Rounding fractions: seven
Decimal points: Three