Hindu–Arabic numerals

concept · 500 · Middle Ages

The decimal positional system.

Where it is used

• Algorithm — is used in. Al-Khwarizmi described calculations in decimal notation.
• Metric system — is used in. Decimal multiples.

History: what it evolved from and what it influenced

• Binary number system — evolved into. A positional system with base 2.

What it is a kind of

• Zero — includes. Part of positional notation.

Things built in a similar way

• Abacus — works like. Positional counting with beads.

Open Evothings