Mathematical Library Functions                             j0(3M)



NAME
     j0, j0f, j0l, j1, j1f, j1l, jn, jnf, jnl - Bessel  functions
     of the first kind

SYNOPSIS
     c99 [ flag... ] file... -lm [ library... ]
     #include 

     double j0(double x);


     float j0f(float x);


     long double j0l(long double x);


     double j1(double x);


     float j1f(float x);


     long double j1l(long double x);


     double jn(int n, double x);


     float jnf(int n, float x);


     long double jnl(int n, long double x);


DESCRIPTION
     These functions compute Bessel functions of x of  the  first
     kind of orders 0, 1 and n respectively.

RETURN VALUES
     Upon  successful  completion,  these  functions  return  the
     relevant Bessel value of x of the first kind.


     If x is NaN, a NaN is returned.

ERORS
     No errors are defined.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



SunOS 5.11          Last change: 12 Jul 2006                    1






Mathematical Library Functions                             j0(3M)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          See below.                  
    
     MT-Level                     MT-Safe                     
    



     The j0(), j1(), and jn() functions are Standard. The  j0f(),
     j0l(), j1f(), j1l(), jnf(), and jnl() functions are Stable.

SEE ALSO
     isnan(3M),  y0(3M),  math.h(3HEAD),   attributes(5),   stan-
     dards(5)







































SunOS 5.11          Last change: 12 Jul 2006                    2