1j0(3M)                  Mathematical Library Functions                  j0(3M)
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NAME

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

10       c99 [ flag... ] file... -lm [ library... ]
11       #include <math.h>
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13       double j0(double x);
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16       float j0f(float x);
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19       long double j0l(long double x);
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22       double j1(double x);
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25       float j1f(float x);
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28       long double j1l(long double x);
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31       double jn(int n, double x);
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34       float jnf(int n, float x);
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37       long double jnl(int n, long double x);
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DESCRIPTION

41       These functions compute Bessel functions of x  of  the  first  kind  of
42       orders 0, 1 and n respectively.
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RETURN VALUES

45       Upon  successful completion, these functions return the relevant Bessel
46       value of x of the first kind.
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49       If x is NaN, a NaN is returned.
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ERRORS

52       No errors are defined.
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ATTRIBUTES

55       See attributes(5) for descriptions of the following attributes:
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60       ┌─────────────────────────────┬─────────────────────────────┐
61       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
62       ├─────────────────────────────┼─────────────────────────────┤
63       │Interface Stability          │See below.                   │
64       ├─────────────────────────────┼─────────────────────────────┤
65       │MT-Level                     │MT-Safe                      │
66       └─────────────────────────────┴─────────────────────────────┘
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69       The j0(), j1(), and jn() functions  are  Standard.  The  j0f(),  j0l(),
70       j1f(), j1l(), jnf(), and jnl() functions are Stable.
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SEE ALSO

73       isnan(3M), y0(3M), math.h(3HEAD), attributes(5), standards(5)
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77SunOS 5.11                        12 Jul 2006                           j0(3M)