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Test of expm1()

Example #1 : test success
Example #2 : test success
Example #3 : test success
Example #1
$input = 12
$expected_output = $test_output
$test_output = [
  
'result' => [
    
'float' => 162753.7914190041,
  ],
  
'php_version' => '7.1.33 Linux x86_64',
]
Example #2
$input = 5.7
$expected_output = $test_output
$test_output = [
  
'result' => [
    
'float' => 297.86740096706035,
  ],
  
'php_version' => '7.1.33 Linux x86_64',
]
Example #3
$input = 1
$expected_output = $test_output
$test_output = [
  
'result' => [
    
'float' => 1.718281828459045,
  ],
  
'php_version' => '7.1.33 Linux x86_64',
]