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Annotation of 43BSD/contrib/icon/man/man3/trig.3, revision 1.1.1.1

1.1       root        1: .so tmac.ilib
                      2: .TH TRIG 3.icon "The University of Arizona \- 8/12/84"
                      3: .SH NAME
                      4: sin, cos, tan, asin, acos, atan, atan2, dtor, rtod \- trigonometric functions
                      5: .SH SYNOPSIS
                      6: .nf
                      7: .sp
                      8: \*Msin(x)\fR
                      9: \*Mcos(x)\fR
                     10: \*Mtan(x)\fR
                     11: \*Masin(x)\fR
                     12: \*Macos(x)\fR
                     13: \*Matan(x)\fR
                     14: \*Matan2(x,\*by)\fR
                     15: \*Mdtor(x)\fR
                     16: \*Mrtod(x)\fR
                     17: .fi
                     18: .SH DESCRIPTION
                     19: \*Msin\fR, \*Mcos\fR, and \*Mtan\fR return trigonometric functions of
                     20: radian arguments. The magnitude of the argument should be checked by
                     21: the caller to make sure that the result is meaningful.
                     22: .LP
                     23: \*Masin\fR returns the arc sin in the range \-\(*p/2 to \(*p/2.
                     24: .LP
                     25: \*Macos\fR returns the arc cosine in the range 0 to \(*p.
                     26: .LP
                     27: \*Matan\fR returns the arc tangent in the range \-\(*p/2 to \(*p/2.
                     28: .LP
                     29: \*Matan2\fR returns the tangent of \*Mx\fR/\*My\fR in the range \-\(*p to \(*p.
                     30: .LP
                     31: \*Mdtor\fR converts degrees to radians, while \*Mrtod\fR converts radians
                     32: to degrees.
                     33: .LP
                     34: The C math library (\*M\-lm\fR)  must be loaded with these functions.
                     35: .SH DIAGNOSTICS
                     36: Run-time error 251 occurs if the magnitude of the argument to \*Masin\fR or \*Macos\fR
                     37: is greater than 1.
                     38: .LP
                     39: Run-time error 252 occurs for the singular points of \*Mtan\fR.
                     40: .SH BUGS
                     41: The value of \*Mtan\fR for arguments greater than about 2\u\s-2\&31\s0\d
                     42: is garbage.
                     43: .SH SEE ALSO
                     44: sin(3m)
                     45: .SH AUTHORS
                     46: Ralph E. Griswold and Stephen B. Wampler

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