Example image of eyePlorer eyePlorer map for 'Positional notation': Decimal Radix Babylonian numerals Binary Hexadecimal Sexagesimal Hindu–Arabic numeral system Order of magnitude Roman numerals Arithmetic Decimal representation Decimal separator Fraction (mathematics) Multiplication Numerical digit Real number Finger Abacus Sign-value notation Aryabhata Georges Ifrah Brahmagupta Cashier's check Numeral system Bijective numeration Non-standard positional numeral systems Base 32 Octal Subscript and superscript Binary numeral system Equality (mathematics) Mathematical notation Symbol Exponentiation Integer Radix point Series (mathematics) Repeating decimal Irrational number Rational number Greatest common divisor Prime factor 1 (number) 1 E3 10 (number) 100 (number) Locale Comma Full stop Orders of magnitude (numbers)