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Diffstat (limited to 'contrib/perl5/t/lib/trig.t')
| -rwxr-xr-x | contrib/perl5/t/lib/trig.t | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/contrib/perl5/t/lib/trig.t b/contrib/perl5/t/lib/trig.t deleted file mode 100755 index 6949622..0000000 --- a/contrib/perl5/t/lib/trig.t +++ /dev/null @@ -1,179 +0,0 @@ -#!./perl - -# -# Regression tests for the Math::Trig package -# -# The tests are quite modest as the Math::Complex tests exercise -# these quite vigorously. -# -# -- Jarkko Hietaniemi, April 1997 - -BEGIN { - chdir 't' if -d 't'; - @INC = '../lib'; -} - -use Math::Trig; - -use strict; - -use vars qw($x $y $z); - -my $eps = 1e-11; - -if ($^O eq 'unicos') { # See lib/Math/Complex.pm and t/lib/complex.t. - $eps = 1e-10; -} - -sub near ($$;$) { - my $e = defined $_[2] ? $_[2] : $eps; - $_[1] ? (abs($_[0]/$_[1] - 1) < $e) : abs($_[0]) < $e; -} - -print "1..23\n"; - -$x = 0.9; -print 'not ' unless (near(tan($x), sin($x) / cos($x))); -print "ok 1\n"; - -print 'not ' unless (near(sinh(2), 3.62686040784702)); -print "ok 2\n"; - -print 'not ' unless (near(acsch(0.1), 2.99822295029797)); -print "ok 3\n"; - -$x = asin(2); -print 'not ' unless (ref $x eq 'Math::Complex'); -print "ok 4\n"; - -# avoid using Math::Complex here -$x =~ /^([^-]+)(-[^i]+)i$/; -($y, $z) = ($1, $2); -print 'not ' unless (near($y, 1.5707963267949) and - near($z, -1.31695789692482)); -print "ok 5\n"; - -print 'not ' unless (near(deg2rad(90), pi/2)); -print "ok 6\n"; - -print 'not ' unless (near(rad2deg(pi), 180)); -print "ok 7\n"; - -use Math::Trig ':radial'; - -{ - my ($r,$t,$z) = cartesian_to_cylindrical(1,1,1); - - print 'not ' unless (near($r, sqrt(2))) and - (near($t, deg2rad(45))) and - (near($z, 1)); - print "ok 8\n"; - - ($x,$y,$z) = cylindrical_to_cartesian($r, $t, $z); - - print 'not ' unless (near($x, 1)) and - (near($y, 1)) and - (near($z, 1)); - print "ok 9\n"; - - ($r,$t,$z) = cartesian_to_cylindrical(1,1,0); - - print 'not ' unless (near($r, sqrt(2))) and - (near($t, deg2rad(45))) and - (near($z, 0)); - print "ok 10\n"; - - ($x,$y,$z) = cylindrical_to_cartesian($r, $t, $z); - - print 'not ' unless (near($x, 1)) and - (near($y, 1)) and - (near($z, 0)); - print "ok 11\n"; -} - -{ - my ($r,$t,$f) = cartesian_to_spherical(1,1,1); - - print 'not ' unless (near($r, sqrt(3))) and - (near($t, deg2rad(45))) and - (near($f, atan2(sqrt(2), 1))); - print "ok 12\n"; - - ($x,$y,$z) = spherical_to_cartesian($r, $t, $f); - - print 'not ' unless (near($x, 1)) and - (near($y, 1)) and - (near($z, 1)); - print "ok 13\n"; - - ($r,$t,$f) = cartesian_to_spherical(1,1,0); - - print 'not ' unless (near($r, sqrt(2))) and - (near($t, deg2rad(45))) and - (near($f, deg2rad(90))); - print "ok 14\n"; - - ($x,$y,$z) = spherical_to_cartesian($r, $t, $f); - - print 'not ' unless (near($x, 1)) and - (near($y, 1)) and - (near($z, 0)); - print "ok 15\n"; -} - -{ - my ($r,$t,$z) = cylindrical_to_spherical(spherical_to_cylindrical(1,1,1)); - - print 'not ' unless (near($r, 1)) and - (near($t, 1)) and - (near($z, 1)); - print "ok 16\n"; - - ($r,$t,$z) = spherical_to_cylindrical(cylindrical_to_spherical(1,1,1)); - - print 'not ' unless (near($r, 1)) and - (near($t, 1)) and - (near($z, 1)); - print "ok 17\n"; -} - -{ - use Math::Trig 'great_circle_distance'; - - print 'not ' - unless (near(great_circle_distance(0, 0, 0, pi/2), pi/2)); - print "ok 18\n"; - - print 'not ' - unless (near(great_circle_distance(0, 0, pi, pi), pi)); - print "ok 19\n"; - - # London to Tokyo. - my @L = (deg2rad(-0.5), deg2rad(90 - 51.3)); - my @T = (deg2rad(139.8),deg2rad(90 - 35.7)); - - my $km = great_circle_distance(@L, @T, 6378); - - print 'not ' unless (near($km, 9605.26637021388)); - print "ok 20\n"; -} - -{ - my $R2D = 57.295779513082320876798154814169; - - sub frac { $_[0] - int($_[0]) } - - my $lotta_radians = deg2rad(1E+20, 1); - print "not " unless near($lotta_radians, 1E+20/$R2D); - print "ok 21\n"; - - my $negat_degrees = rad2deg(-1E20, 1); - print "not " unless near($negat_degrees, -1E+20*$R2D); - print "ok 22\n"; - - my $posit_degrees = rad2deg(-10000, 1); - print "not " unless near($posit_degrees, -10000*$R2D); - print "ok 23\n"; -} - -# eof |
