Order of operations
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In mathematics and computer programming, the order of operations is a collection of conventions about which arithmetic operations to perform first in order to evaluate a given mathematical expression.
6÷2(1+2) is interpreted as 6÷(2×(1+2)) by a fx-82MS (upper), and (6÷2)×(1+2) by a TI-83 Plus calculator (lower), respectively.
Expression (mathematics)
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In mathematics, an expression is an arrangement of symbols following the context-dependent, syntactic conventions of mathematical notation. Symbols can denote numbers, variables, operations, and funct
Order of operations
…programming, the order of operations is a collection of conventions about which arithmetic operations to perform first in order to evaluate a given mathematical expression. These conventions are formalized with a ranking of the operations. The rank of an operation is called its precedence, and an operation with a higher…
The 1489 use of the plus and minus signs in print.
Ishango bone
Ybc 7289 bw
Moskou papyrus