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Annotation of researchv10dc/man/adm/man3/sin.3, revision 1.1.1.1

1.1       root        1: .TH SIN 3M
                      2: .CT 2 math
                      3: .SH NAME
                      4: sin, cos, tan, asin, acos, atan, atan2 \(mi trigonometric functions
                      5: .SH SYNOPSIS
                      6: .nf
                      7: .B #include <math.h>
                      8: .PP
                      9: .B double sin(x)
                     10: .B double x;
                     11: .PP
                     12: .B double cos(x)
                     13: .B double x;
                     14: .PP
                     15: .B double tan(x)
                     16: .B double x;
                     17: .PP
                     18: .B double asin(x)
                     19: .B double x;
                     20: .PP
                     21: .B double acos(x)
                     22: .B double x;
                     23: .PP
                     24: .B double atan(x)
                     25: .B double x;
                     26: .PP
                     27: .B double atan2(y, x)
                     28: .B double x, y;
                     29: .fi
                     30: .SH DESCRIPTION
                     31: .I Sin, cos
                     32: and
                     33: .I tan
                     34: return trigonometric functions of radian arguments.
                     35: The magnitude of the argument should be checked
                     36: by the caller to make sure the result is meaningful.
                     37: .PP
                     38: .I Asin
                     39: returns the arc sin in the range \-\(*p/2 to \(*p/2.
                     40: .PP
                     41: .I Acos
                     42: returns the arc cosine in the range
                     43: 0 to \(*p.
                     44: .PP
                     45: .I Atan
                     46: returns the arc tangent of
                     47: .I x
                     48: in the range \-\(*p/2 to \(*p/2.
                     49: .PP
                     50: .I Atan2
                     51: returns the arc tangent of
                     52: .I y/x
                     53: in the range \-\(*p to \(*p.
                     54: .SH DIAGNOSTICS
                     55: Arguments of magnitude greater than 1
                     56: cause
                     57: .I asin
                     58: and
                     59: .I acos
                     60: to return value 0;
                     61: .I errno
                     62: is set to
                     63: .LR EDOM .
                     64: The value of
                     65: .I tan
                     66: at its singular points is a huge number, and
                     67: .I errno
                     68: is set to
                     69: .LR ERANGE .
                     70: .SH BUGS
                     71: The value of
                     72: .I tan
                     73: for arguments greater than about 2\u\s-231\s+2\d is garbage.

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