1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
--TEST--
Test expm1() - basic function test for expm1()
--INI--
precision=14
--FILE--
<?php
/* Prototype : float expm1 ( float $arg )
* Description: Returns exp(number) - 1, computed in a way that is accurate even
* when the value of number is close to zero.
* Source code: ext/standard/math.c
*/
echo "*** Testing expm1() : basic functionality ***\n";
$values = array(10,
10.3,
3.9505e3,
037,
0x5F,
"10",
"3950.5",
"3.9505e3",
"039",
true,
false,
null,
);
// loop through each element of $values to check the behaviour of expm1()
$iterator = 1;
foreach($values as $value) {
echo "\n-- Iteration $iterator --\n";
var_dump(expm1($value));
$iterator++;
};
?>
===Done===
--EXPECTF--
*** Testing expm1() : basic functionality ***
-- Iteration 1 --
float(22025.465794807)
-- Iteration 2 --
float(29731.618852891)
-- Iteration 3 --
float(INF)
-- Iteration 4 --
float(29048849665246)
-- Iteration 5 --
float(1.811239082889E+41)
-- Iteration 6 --
float(22025.465794807)
-- Iteration 7 --
float(INF)
-- Iteration 8 --
float(INF)
-- Iteration 9 --
float(8.6593400423994E+16)
-- Iteration 10 --
float(1.718281828459)
-- Iteration 11 --
float(0)
-- Iteration 12 --
float(0)
===Done===
|
