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1.1 ! root 1: .\" Copyright (c) 1985 Regents of the University of California. ! 2: .\" All rights reserved. The Berkeley software License Agreement ! 3: .\" specifies the terms and conditions for redistribution. ! 4: .\" ! 5: .\" @(#)j0.3m 6.6 (Berkeley) 5/12/86 ! 6: .\" ! 7: .TH J0 3M "May 12, 1986" ! 8: .UC 4 ! 9: .SH NAME ! 10: j0, j1, jn, y0, y1, yn \- bessel functions ! 11: .SH SYNOPSIS ! 12: .nf ! 13: .B #include <math.h> ! 14: .PP ! 15: .B double j0(x) ! 16: .B double x; ! 17: .PP ! 18: .B double j1(x) ! 19: .B double x; ! 20: .PP ! 21: .B double jn(n,x) ! 22: .B int n; ! 23: .B double x; ! 24: .PP ! 25: .B double y0(x) ! 26: .B double x; ! 27: .PP ! 28: .B double y1(x) ! 29: .B double x; ! 30: .PP ! 31: .B double yn(n,x) ! 32: .B int n; ! 33: .B double x; ! 34: .fi ! 35: .SH DESCRIPTION ! 36: These functions calculate Bessel functions of the first ! 37: and second kinds for real arguments and integer orders. ! 38: .SH DIAGNOSTICS ! 39: On a VAX, negative arguments cause y0, y1 and yn ! 40: to return the reserved operand and set \fIerrno\fR to EDOM. ! 41: .SH SEE ALSO ! 42: math(3M), infnan(3M)
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