Commit | Line | Data |
---|---|---|
5aabfad6 | 1 | #!./perl |
2 | ||
3 | # | |
4 | # Regression tests for the Math::Trig package | |
5 | # | |
6 | # The tests are quite modest as the Math::Complex tests exercise | |
7 | # these quite vigorously. | |
8 | # | |
9 | # -- Jarkko Hietaniemi, April 1997 | |
10 | ||
11 | BEGIN { | |
12 | chdir 't' if -d 't'; | |
13 | @INC = '../lib'; | |
14 | } | |
15 | ||
16 | use Math::Trig; | |
17 | ||
18 | use strict; | |
19 | ||
20 | use vars qw($x $y $z); | |
21 | ||
22 | my $eps = 1e-11; | |
23 | ||
24 | sub near ($$;$) { | |
25 | abs($_[0] - $_[1]) < (defined $_[2] ? $_[2] : $eps); | |
26 | } | |
27 | ||
ace5de91 | 28 | print "1..7\n"; |
5aabfad6 | 29 | |
30 | $x = 0.9; | |
31 | print 'not ' unless (near(tan($x), sin($x) / cos($x))); | |
32 | print "ok 1\n"; | |
33 | ||
34 | print 'not ' unless (near(sinh(2), 3.62686040784702)); | |
35 | print "ok 2\n"; | |
36 | ||
37 | print 'not ' unless (near(acsch(0.1), 2.99822295029797)); | |
38 | print "ok 3\n"; | |
39 | ||
40 | $x = asin(2); | |
41 | print 'not ' unless (ref $x eq 'Math::Complex'); | |
42 | print "ok 4\n"; | |
43 | ||
44 | # avoid using Math::Complex here | |
45 | $x =~ /^([^-]+)(-[^i]+)i$/; | |
46 | ($y, $z) = ($1, $2); | |
47 | print 'not ' unless (near($y, 1.5707963267949) and | |
48 | near($z, -1.31695789692482)); | |
49 | print "ok 5\n"; | |
50 | ||
ace5de91 | 51 | print 'not ' unless (near(deg2rad(90), pi/2)); |
5aabfad6 | 52 | print "ok 6\n"; |
53 | ||
ace5de91 GS |
54 | print 'not ' unless (near(rad2deg(pi), 180)); |
55 | print "ok 7\n"; | |
56 | ||
5aabfad6 | 57 | # eof |