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Annotation of 43BSDReno/old/libm/man/sin.3, revision 1.1.1.1

1.1       root        1: .\"    @(#)sin.3       6.1 (Berkeley) 5/15/85
                      2: .\"
                      3: .TH SIN 3M  "May 15, 1985"
                      4: .AT 3
                      5: .SH NAME
                      6: sin, cos, tan, asin, acos, atan, atan2 \- trigonometric functions
                      7: .SH SYNOPSIS
                      8: .nf
                      9: .B #include <math.h>
                     10: .PP
                     11: .B double sin(x)
                     12: .B double x;
                     13: .PP
                     14: .B double cos(x)
                     15: .B double x;
                     16: .PP
                     17: .B double asin(x)
                     18: .B double x;
                     19: .PP
                     20: .B double acos(x)
                     21: .B double x;
                     22: .PP
                     23: .B double atan(x)
                     24: .B double x;
                     25: .PP
                     26: .B double atan2(x, y)
                     27: .B double x, y;
                     28: .fi
                     29: .SH DESCRIPTION
                     30: .I Sin, cos
                     31: and
                     32: .I tan
                     33: return trigonometric functions of radian arguments.
                     34: The magnitude of the argument should be checked
                     35: by the caller to make sure the result is meaningful.
                     36: .PP
                     37: .I Asin
                     38: returns the arc sin in the range \-\(*p/2 to \(*p/2.
                     39: .PP
                     40: .I Acos
                     41: returns the arc cosine in the range 0 to \(*p.
                     42: .PP
                     43: .I Atan
                     44: returns the arc tangent of
                     45: .I x
                     46: in the range \-\(*p/2 to \(*p/2.
                     47: .PP
                     48: .I Atan2
                     49: returns the arc tangent of
                     50: .I x/y
                     51: in the range \-\(*p to \(*p.
                     52: .SH DIAGNOSTICS
                     53: Arguments of magnitude greater than 1 cause
                     54: .I asin
                     55: and
                     56: .I acos
                     57: to return value 0;
                     58: .I errno
                     59: is set to EDOM.  The value of
                     60: .I tan
                     61: at its singular points is a huge number, and
                     62: .I errno
                     63: is set to ERANGE.
                     64: .SH BUGS
                     65: The value of
                     66: .I tan
                     67: for arguments greater than about 2**31 is garbage.

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