Meaning of 指数関 in Japanese

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Definition of 指数関

せき(seki) 【関】

しすう(shisuu) 【指数】

(n) index; index number; exponent (e.g. in floating-point representation); characteristic

ぜき(zeki) 【関】

(suf) (sumo) honorific added to names of makuuchi and juryo division wrestlers →Related words: 関取

しすうかんすう(shisuukansuu) 【指数関数】

(n) exponential function; exponentiation function
あのー、先生？黒板に書いてあるの、指数関数じゃなくて三角関数ですけど・・・。
Er, Sir? What's written on the blackboard isn't an exponential function but a trigonometric one ...