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Annotation of cci/usr/src/man/man3/sin.3m, revision 1.1.1.1

1.1       root        1: .TH SIN 3M  "11 December 1984"
                      2: .SH NAME
                      3: sin, cos, tan, asin, acos, atan, atan2 \- trigonometric functions
                      4: .SH SYNOPSIS
                      5: .nf
                      6: .PP
                      7: .B fortran float sin(x)
                      8: .B float x;
                      9: .PP
                     10: .B fortran float cos(x)
                     11: .B float x;
                     12: .PP
                     13: .B fortran float atan(x)
                     14: .B float x;
                     15: .PP
                     16: .B #include <math.h>
                     17: .PP
                     18: .B double sin(x)
                     19: .B double x;
                     20: .PP
                     21: .B double cos(x)
                     22: .B double x;
                     23: .PP
                     24: .B double asin(x)
                     25: .B double x;
                     26: .PP
                     27: .B double acos(x)
                     28: .B double x;
                     29: .PP
                     30: .B double atan(x)
                     31: .B double x;
                     32: .PP
                     33: .B double atan2(x, y)
                     34: .B double x, y;
                     35: .fi
                     36: .SH DESCRIPTION
                     37: .I Sin, cos
                     38: and
                     39: .I tan
                     40: return trigonometric functions of radian arguments.
                     41: The magnitude of the argument should be checked
                     42: by the caller to make sure the result is meaningful.
                     43: .PP
                     44: .I Asin
                     45: returns the arc sin in the range \-\(*p/2 to \(*p/2.
                     46: .PP
                     47: .I Acos
                     48: returns the arc cosine in the range 0 to \(*p.
                     49: .PP
                     50: .I Atan
                     51: returns the arc tangent of
                     52: .I x
                     53: in the range \-\(*p/2 to \(*p/2.
                     54: .PP
                     55: .I Atan2
                     56: returns the arc tangent of
                     57: .I x/y
                     58: in the range \-\(*p to \(*p.
                     59: .PP
                     60: If the function 
                     61: .I sin, cos
                     62: or
                     63: .I atan
                     64: is declared to be
                     65: .I fortran
                     66: .I float,
                     67: the single-precision floating point opcode
                     68: .I sinf, cosf
                     69: or
                     70: .I atanf
                     71: will be generated instead of a call to the respective
                     72: double-precision function.
                     73: 
                     74: .SH DIAGNOSTICS
                     75: Arguments of magnitude greater than 1 cause
                     76: .I asin
                     77: and
                     78: .I acos
                     79: to return value 0;
                     80: .I errno
                     81: is set to EDOM.  The value of
                     82: .I tan
                     83: at its singular points is a huge number, and
                     84: .I errno
                     85: is set to ERANGE.
                     86: .SH BUGS
                     87: The value of
                     88: .I tan
                     89: for arguments greater than about 2**31 is garbage.

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