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scipy tutorial - Baustatik-Info-Server

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SciPy Reference Guide, Release 0.8.dev<br />

k0<br />

k0e<br />

k1<br />

k1e<br />

y=k0(x) returns the modified Bessel function of the second kind (sometimes called the third kind) of order 0 at<br />

x.<br />

y=k0e(x) returns the exponentially scaled modified Bessel function of the second kind (sometimes called the<br />

third kind) of order 0 at x. k0e(x) = exp(x) * k0(x).<br />

y=i1(x) returns the modified Bessel function of the second kind (sometimes called the third kind) of order 1 at<br />

x.<br />

y=k1e(x) returns the exponentially scaled modified Bessel function of the second kind (sometimes called the<br />

third kind) of order 1 at x. k1e(x) = exp(x) * k1(x)<br />

Integrals of Bessel Functions<br />

itj0y0(out1) (ij0,iy0)=itj0y0(x) returns simple integrals from 0 to x of the zeroth order<br />

it2j0y0(out1) (ij0,iy0)=it2j0y0(x) returns the integrals int((1-j0(t))/t,t=0..x) and<br />

iti0k0(out1) (ii0,ik0)=iti0k0(x) returns simple integrals from 0 to x of the zeroth order<br />

it2i0k0(out1) (ii0,ik0)=it2i0k0(x) returns the integrals int((i0(t)-1)/t,t=0..x) and<br />

besselpoly(x1, x2) y=besselpoly(a,lam,nu) returns the value of the integral:<br />

itj0y0<br />

(ij0,iy0)=itj0y0(x) returns simple integrals from 0 to x of the zeroth order bessel functions j0 and y0.<br />

it2j0y0<br />

(ij0,iy0)=it2j0y0(x) returns the integrals int((1-j0(t))/t,t=0..x) and int(y0(t)/t,t=x..infinitity).<br />

iti0k0<br />

(ii0,ik0)=iti0k0(x) returns simple integrals from 0 to x of the zeroth order modified bessel functions i0 and k0.<br />

it2i0k0<br />

(ii0,ik0)=it2i0k0(x) returns the integrals int((i0(t)-1)/t,t=0..x) and int(k0(t)/t,t=x..infinitity).<br />

besselpoly<br />

y=besselpoly(a,lam,nu) returns the value of the integral: integral(x**lam * jv(nu,2*a*x),x=0..1).<br />

Derivatives of Bessel Functions<br />

jvp(v, z[, n]) Return the nth derivative of Jv(z) with respect to z.<br />

yvp(v, z[, n]) Return the nth derivative of Yv(z) with respect to z.<br />

kvp(v, z[, n]) Return the nth derivative of Kv(z) with respect to z.<br />

ivp(v, z[, n]) Return the nth derivative of Iv(z) with respect to z.<br />

h1vp(v, z[, n]) Return the nth derivative of H1v(z) with respect to z.<br />

h2vp(v, z[, n]) Return the nth derivative of H2v(z) with respect to z.<br />

jvp(v, z, n=1)<br />

Return the nth derivative of Jv(z) with respect to z.<br />

yvp(v, z, n=1)<br />

Return the nth derivative of Yv(z) with respect to z.<br />

kvp(v, z, n=1)<br />

Return the nth derivative of Kv(z) with respect to z.<br />

ivp(v, z, n=1)<br />

Return the nth derivative of Iv(z) with respect to z.<br />

428 Chapter 3. Reference

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