Searched defs:atan (Results 1 - 1 of 1) sorted by relevance

/osnet-11/usr/src/cmd/perl/5.8.4/distrib/lib/Math/
H A DComplex.pm51 asin acos atan
979 # atan
981 # Computes the arc tangent atan(z) = i/2 log((i+z) / (i-z)).
983 sub atan { subroutine
988 _divbyzero "atan(i)" if ( $z == i);
989 _logofzero "atan(-i)" if (-$z == i); # -i is a bad file test...
1026 # Computes the arc cotangent acot(z) = atan(1 / z)
1035 return atan(1 / $z);
1268 # Compute atan(z1/z2).
1284 my $w = atan(
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