Difference between revisions of "Power of two"
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Revision as of 17:39, 5 September 2015
In mathematics, a power of two means a number of the form 2n where n is an integer, i.e. the result of exponentiation with number two as the base and integer n as the exponent.
Description
In a context where only integers are considered, n is restricted to non-negative values, so we have 1, 2, and 2 multiplied by itself a certain number of times.
Because two is the base of the binary numeral system, powers of two are common in computer science.
Written in binary, a power of two always has the form 100…000 or 0.00…001, just like a power of ten in the decimal system.
See also
- Binary
- Binary numeral system
- Bit
- Computer science
- Decimal system
- Exponentiation
- Mathematics
- Power of ten
External links
- Power of two @ Wikipedia
