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1.1 ! root 1: .TH BESSEL 3M ! 2: .CT 2 math ! 3: .SH NAME ! 4: besj0, besj1, besjn, besy0, besy1, besyn \(mi bessel functions ! 5: .SH SYNOPSIS ! 6: .nf ! 7: .B #include <math.h> ! 8: .PP ! 9: .B double besj0(x) ! 10: .B double x; ! 11: .PP ! 12: .B double besj1(x) ! 13: .B double x; ! 14: .PP ! 15: .B double besjn(n, x) ! 16: .B double x; ! 17: .PP ! 18: .B double besy0(x) ! 19: .B double x; ! 20: .PP ! 21: .B double besy1(x) ! 22: .B double x; ! 23: .PP ! 24: .B double besyn(n, x) ! 25: .B double x; ! 26: .fi ! 27: .SH DESCRIPTION ! 28: These functions calculate Bessel functions of the first ! 29: and second kinds for real arguments and integer orders. ! 30: .SH DIAGNOSTICS ! 31: Negative arguments cause ! 32: .I besy0, besy1, ! 33: and ! 34: .I besyn ! 35: to return a huge negative value ! 36: and set ! 37: .I errno ! 38: to ! 39: .BR EDOM .
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