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)
),
j0f(),
j1()
and
j1f()
compute the
Bessel function of the first kind of the order
0 and the
order
1, respectively,
for the
real value
x;
the functions
jn()
and
jnf()
compute the
Bessel function of the first kind of the integer order
n
for the real value
x.
The functions
y0(),
y0f(),
y1()
and
y1f()
compute the linearly independent
Bessel function of the second kind of the order
0 and the
order
1, respectively,
for the
positive
integer
value
x
(expressed as a double);
the functions
yn()
and
ynf()
compute the
Bessel function of the second kind for the integer order
n
for the positive
integer
value
x
(expressed as a double).
EDOM
and a reserve operand fault is generated.
AT&T UNIX.