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1.1 ! root 1: .\" @(#)j0.3 6.1 (Berkeley) 5/15/85 ! 2: .\" ! 3: .TH J0 3M "May 15, 1985" ! 4: .AT 3 ! 5: .SH NAME ! 6: j0, j1, jn, y0, y1, yn \- bessel functions ! 7: .SH SYNOPSIS ! 8: .nf ! 9: .B #include <math.h> ! 10: .PP ! 11: .B double j0(x) ! 12: .B double x; ! 13: .PP ! 14: .B double j1(x) ! 15: .B double x; ! 16: .PP ! 17: .B double jn(n, x) ! 18: .B double x; ! 19: .PP ! 20: .B double y0(x) ! 21: .B double x; ! 22: .PP ! 23: .B double y1(x) ! 24: .B double x; ! 25: .PP ! 26: .B double yn(n, x) ! 27: .B double x; ! 28: .fi ! 29: .SH DESCRIPTION ! 30: These functions calculate Bessel functions of the first ! 31: and second kinds for real arguments and integer orders. ! 32: .SH DIAGNOSTICS ! 33: Negative arguments cause ! 34: .I y0, y1, ! 35: and ! 36: .I yn ! 37: to return a huge negative value and set ! 38: .I errno ! 39: to EDOM.
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