Example image of eyePlorer eyePlorer map for 'Numeral system': Grapheme Mathematical notation Number Writing system Binary numeral system Decimal Radix Integer Whole number Finite set Numerical digit Sequence Rational number Repeating decimal Complex number Number system P-adic number Real number Arabic numerals India Aryabhata Brahmagupta Patna Natural number Unary numeral system Tally marks Theoretical computer science Data compression Elias gamma coding Sign-value notation Egyptian numerals Roman numerals English language Language Positional notation 0 (number) Hindu–Arabic numeral system Arithmetic progression Geometric progression Greek numerals Bijective numeration Bijection Residue number system Transistor Vacuum tube Computer Digital History of computing hardware Ternary numeral system Byte