Currently, calculators come in standard and scientific types. The standard type has sufficiently large buttons that can be operated with fingers, large and clear numbers, and can meet basic calculations. The standard mode supports displaying 12-digit numbers, arithmetic operations, square roots, percentages, and memory functions. The scientific type has all common functions, and all functions are distributed on the keyboard so that you can use them without going through a menu list.
The scientific calculator supports displaying 24-digit numbers, supports operation priority selection mode, numeral system conversion function, standard mathematical functions, percentage calculation, root calculation, logarithms, exponentiation, memory, and more.