noun
Mathematical term for the exponent in expressions like a^n, or the power itself. Used in formal mathematical writing.
See also: 冪 (べき)
aのn乗のnを冪数という。
The n in a to the power of n is called the exponent.
冪数が大きくなると計算が複雑になる。
When the exponent becomes large, the calculation becomes complicated.
Compound of 冪 (べき, 'power') and 数 (すう, 'number'). The kanji 冪 is a mathematical term for exponentiation.