11 # compile time evaluation
14 is(substr($s,0,5), '1.414', 'compile time sqrt(2) == 1.414');
17 is(substr($s,0,7), '2.71828', 'compile time exp(1) == e');
19 cmp_ok(exp(log(1)), '==', 1, 'compile time exp(log(1)) == 1');
26 is(substr($s,0,5), '1.414', 'run time sqrt(2) == 1.414');
29 is(substr($s,0,7), '2.71828', 'run time exp(1) = e');
31 cmp_ok(exp(log($x1)), '==', 1, 'run time exp(log(1)) == 1');
33 # tests for transcendental functions
35 my $pi = 3.1415926535897931160;
36 my $pi_2 = 1.5707963267948965580;
40 return sprintf("%.9f", $result);
44 cmp_ok(sin(0), '==', 0.0, 'sin(0) == 0');
45 cmp_ok(round(sin($pi)), '==', 0.0, 'sin(pi) == 0');
46 cmp_ok(round(sin(-1 * $pi)), '==', 0.0, 'sin(-pi) == 0');
47 cmp_ok(round(sin($pi_2)), '==', 1.0, 'sin(pi/2) == 1');
48 cmp_ok(round(sin(-1 * $pi_2)), '==', -1.0, 'sin(-pi/2) == -1');
51 cmp_ok(cos(0), '==', 1.0, 'cos(0) == 1');
52 cmp_ok(round(cos($pi)), '==', -1.0, 'cos(pi) == -1');
53 cmp_ok(round(cos(-1 * $pi)), '==', -1.0, 'cos(-pi) == -1');
54 cmp_ok(round(cos($pi_2)), '==', 0.0, 'cos(pi/2) == 0');
55 cmp_ok(round(cos(-1 * $pi_2)), '==', 0.0, 'cos(-pi/2) == 0');
57 # atan2() tests were removed due to differing results from calls to
58 # atan2() on various OS's and architectures. See perlport.pod for