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Scilab help >> Elementary Functions > Trigonometry > acotd

acotd

引数の要素毎の逆正接(単位:度)を計算する.

呼び出し手順

y = acotd(x)

パラメータ

x

実数または複素数の配列.

y

実数または複素数の配列.

説明

要素毎の逆正接を計算し,結果を(単位:度0を返す). 引数が実数の場合,結果は実数となる.

x=[1 2 -2 sqrt(2) -sqrt(2) 2/sqrt(3) -2/sqrt(3) -1];
acotd(x)

参考

参照

  • Kahan, W., "Branch cuts for complex elementary functions, or, Much ado about nothing's sign bit", Proceedings of the joing IMA/SIAM conference on The State of the Art in Numerical Analysis, University of Birmingham, A. Iserles and M.J.D. Powell, eds, Clarendon Press, Oxford, 1987, 165-210.

作者

  • Serge Steer, INRIA
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Last updated:
Thu Mar 03 11:00:51 CET 2011