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Scilab help >> Signal Processing > %asn

%asn

楕円積分 l

呼び出し手順

[y]=%asn(x,m)

パラメータ

x

積分の上限 (x>0) (ベクトルにすることが可能)

m

積分のパラメータ (0<m<1)

y

積分値

説明

楕円積分を計算します.

xがベクトルの場合, y は xと同じ次元のベクトルとなります.

例

m=0.8;z=%asn(1/sqrt(m),m);K=real(z);Ktilde=imag(z);
x2max=1/sqrt(m);
x1=0:0.05:1;x2=1:((x2max-1)/20):x2max;x3=x2max:0.05:10;
x=[x1,x2,x3];
y=%asn(x,m);
rect=[0,-Ktilde,1.1*K,2*Ktilde];
plot2d(real(y)',imag(y)',1,'011',' ',rect)

deff('y=f(t)','y=1/sqrt((1-t^2)*(1-m*t^2))');
intg(0,0.9,f)-%asn(0.9,m)  //実数の場合のみ動作します!

作者

F. D.

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with contributors 		Last updated:
Wed Oct 05 12:12:51 CEST 2011