1J0(3M)                                                                  J0(3M)
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NAME

6       j0, j1, jn, y0, y1, yn - bessel functions
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SYNOPSIS

9       #include <math.h>
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11       double j0(x)
12       double x;
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14       double j1(x)
15       double x;
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17       double jn(n, x);
18       double x;
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20       double y0(x)
21       double x;
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23       double y1(x)
24       double x;
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26       double yn(n, x)
27       double x;
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DESCRIPTION

30       These  functions  calculate  Bessel  functions  of the first and second
31       kinds for real arguments and integer orders.
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DIAGNOSTICS

34       Negative arguments cause y0, y1, and yn to return a huge negative value
35       and set errno to EDOM.
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39                                                                        J0(3M)