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# notation

[noh-tey-shuhn]
notation: see arithmetic and musical notation.

The term notation can refer to:

## Written communication

• Symbol, something that stands for, or suggests, something else

### Physics

• Bra-ket notation or Dirac Notation is another representation of probability in quantum mechanics
• Tensor notation is a general way to represent a gravitational field in general relativity

### Typographical conventions

• Infix notation, the common arithmetic and logical formula notation, such as a+b-c
• Polish notation or "prefix notation", which places the operator before the operands (arguments), such as + a b
• Reverse Polish notation or "postfix notation", which places the operator after the operands, such as a b +
• Numeral systems, notation for writing numbers, including
• Scientific notation for expressing large and small numbers
• Sign-value notation, using signs or symbols to represent numbers
• Positional notation also known as place-value notation, in which each position is related to the next by a multiplier which is called the base of that numeral system
• Binary notation, a positional notation in base two
• Octal notation, a positional notation in base eight, used in some computers
• Decimal notation, a positional notation in base ten
• Hexadecimal notation, a positional notation in base sixteen, commonly used in computers
• Sexagesimal notation, an ancient numeral system in base sixty
• See also Table of mathematical symbols - for general tokens and their definitions

## Other systems

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