How to use acosh() function to get the inverse hyperbolic cosine of a float number in PHP

1 Answer

0 votes
echo acosh(1)  . "<br />";
echo acosh(3.14)  . "<br />";
echo acosh(-1)  . "<br />";
echo acosh(0)  . "<br />";

   
/*
run: 

0
1.8109913489002
NAN
NAN

 



answered May 15, 2016 by avibootz
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