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1.1 ! root 1: .TH BESSEL 3F "18 July 1983" ! 2: .UC 4 ! 3: .SH NAME ! 4: bessel functions \- of two kinds for integer orders ! 5: .SH SYNOPSIS ! 6: .B function besj0 (x) ! 7: .sp 1 ! 8: .B function besj1 (x) ! 9: .sp 1 ! 10: .B function besjn (n, x) ! 11: .sp 1 ! 12: .B function besy0 (x) ! 13: .sp 1 ! 14: .B function besy1 (x) ! 15: .sp 1 ! 16: .B function besyn (n, x) ! 17: .sp 1 ! 18: .B double precision function dbesj0 (x) ! 19: .br ! 20: .B double precision x ! 21: .sp 1 ! 22: .B double precision function dbesj1 (x) ! 23: .br ! 24: .B double precision x ! 25: .sp 1 ! 26: .B double precision function dbesjn (n, x) ! 27: .br ! 28: .B double precision x ! 29: .sp 1 ! 30: .B double precision function dbesy0 (x) ! 31: .br ! 32: .B double precision x ! 33: .sp 1 ! 34: .B double precision function dbesy1 (x) ! 35: .br ! 36: .B double precision x ! 37: .sp 1 ! 38: .B double precision function dbesyn (n, x) ! 39: .br ! 40: .B double precision x ! 41: .SH DESCRIPTION ! 42: These functions calculate Bessel functions of the first and second kinds ! 43: for real arguments and integer orders. ! 44: .SH DIAGNOSTICS ! 45: Negative arguments cause \fIbesy0, besy1,\fR and \fIbesyn\fR to return a huge ! 46: negative value. The system error code will be set to EDOM (33). ! 47: .SH FILES ! 48: .ie \nM /usr/ucb/lib/libF77.a ! 49: .el /usr/lib/libF77.a ! 50: .SH "SEE ALSO" ! 51: j0(3M), perror(3F)
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