Scilab 5.3.1
- Scilab help
- Elementary Functions
- Trigonometry
- acos
- acosd
- acosh
- acoshm
- acosm
- acot
- acotd
- acoth
- acsc
- acscd
- acsch
- asec
- asecd
- asech
- asin
- asind
- asinh
- asinhm
- asinm
- atan
- atand
- atanh
- atanhm
- atanm
- conj
- cos
- cosd
- cosh
- coshm
- cosm
- cotd
- cotg
- coth
- cothm
- csc
- cscd
- csch
- csgn
- sec
- secd
- sech
- sin
- sinc
- sind
- sinh
- sinhm
- sinm
- tan
- tand
- tanh
- tanhm
- tanm
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
asec
引数の要素毎の逆割線を計算する.
呼び出し手順
y = asec(x)
パラメータ
- x
実数または複素数配列.
- y
実数または複素数配列.
説明
引数の要素毎の逆割線を計算します. 絶対値が 1 より大きい 実数の引数の場合, 結果は実数になります.
以下の等式が満たされます: asec(z) = -acsc(-z) =
asin(1/z) = %pi/2-asec(x) = %i*acsch(%i*z)
参考文献
- 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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