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Scilabヘルプ >> Special Functions > %sn

%sn

ヤコビ楕円関数 (obsolete)

呼び出し手順

y = %sn(x, m)

パラメータ

x

楕円積分により定義される基本矩形の中の点; x は複素数ベクトル

m

楕円積分のパラメータ (0<m<1)

y

結果

説明

%sn() is obsolete and will be removed from Scilab 6.1.x. Please use ellipj() instead.

パラメータmを指定した ヤコビの楕円関数: パラメータmの楕円積分の逆.

ゲインamはFortran形式で計算され, 楕円関数用の加算式が適用されます.

m=0.36;
K=%k(m);
P=4*K; //実周期
real_val=0:(P/50):P;
plot(real_val,real(%sn(real_val,m)))
clf();
KK=%k(1-m);
Ip=2*KK;
ima_val1=0:(Ip/50):KK-0.001;
ima_val2=(KK+0.05):(Ip/25):(Ip+KK);
z1=%sn(%i*ima_val1,m);z2=%sn(%i*ima_val2,m);
plot2d([ima_val1',ima_val2'],[imag(z1)',imag(z2)']);
xgrid(3)

参照

  • ellipj — Jacobi elliptic functions
  • delip — 第一種の完全および不完全楕円積分
  • %k — ヤコビの完全楕円積分

履歴

VersionDescription
6.1.0 %sn() is declared obsolete. ellipj() must be used instead.
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