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j0(), j1(), jn(), Bessel functions of the first kind

5.6 j0(), j1(), jn(), Bessel functions of the first kind

These functions compute Bessel functions of the first kind.

j0 and j1 compute the functions of order 0 and 1 respectively. jn computes the function of order n.
double j0(double x);
double j1(double x);
double jn(int n, double x);
If the absolute value of x exceeds pi times 2^52, these functions return an ERANGE error, denoting total loss of significance in the result.

Note

These functions are deprecated in ARM® Compiler 4.1 and later.
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