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expm1()

« explode | extension_loaded »
<?php
$float 
expm1 (
    
  // float $arg
);
?>
Result
$float = 162753.79141900409
Examples
#1 expm1  (12)
#2 expm1  (5.7)
#3 expm1  (1)
See also
exp, log1p