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Scilab help >> Special Functions > %sn

# %sn

ヤコビ楕円関数

[y]=%sn(x,m)

x

m

y

### 説明

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.

### 例

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

• %asn — 楕円積分 l
• %k — ヤコビの完全楕円積分
 Report an issue << %k Special Functions Randlib >>

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