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double j0(double X);
float j0f(float X);
double j1(double X);
float j1f(float X);
double jn(int N, double X);
float jnf(int N, float X);
double y0(double X);
float y0f(float X);
double y1(double X);
float y1f(float X);
double yn(int N, double X);
float ynf(int N, float X);
The Bessel functions are a family of functions that solve the
2 2 2
x y'' + xy' + (x - p )y = 0
These functions have many applications in engineering and physics.
`jn' calculates the Bessel function of the first kind of order N.
`j0' and `j1' are special cases for order 0 and order 1 respectively.
Similarly, `yn' calculates the Bessel function of the second kind of
order N, and `y0' and `y1' are special cases for order 0 and 1.
`jnf', `j0f', `j1f', `ynf', `y0f', and `y1f' perform the same
calculations, but on `float' rather than `double' values.
The value of each Bessel function at X is returned.
None of the Bessel functions are in ANSI C.
Created Mon Nov 8 17:42:56 2004 on tillpc with info_to_html version 0.9.6.