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1.1 ! root 1: .TH J0 3M "19 January 1983" ! 2: .SH NAME ! 3: j0, j1, jn, y0, y1, yn \- bessel functions ! 4: .SH SYNOPSIS ! 5: .nf ! 6: .B #include <math.h> ! 7: .PP ! 8: .B double j0(x) ! 9: .B double x; ! 10: .PP ! 11: .B double j1(x) ! 12: .B double x; ! 13: .PP ! 14: .B double jn(n, x) ! 15: .B double x; ! 16: .PP ! 17: .B double y0(x) ! 18: .B double x; ! 19: .PP ! 20: .B double y1(x) ! 21: .B double x; ! 22: .PP ! 23: .B double yn(n, x) ! 24: .B double x; ! 25: .fi ! 26: .SH DESCRIPTION ! 27: These functions calculate Bessel functions of the first ! 28: and second kinds for real arguments and integer orders. ! 29: .SH DIAGNOSTICS ! 30: Negative arguments cause ! 31: .I y0, y1, ! 32: and ! 33: .I yn ! 34: to return a huge negative value and set ! 35: .I errno ! 36: to EDOM.
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