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{math.cos.inverse(Float $number)}
{matg.cos.inverse()}
Returns the arc cosine of number
in radians.
{math.cos.inverse()}
is the inverse function of {math.cos()}
, which means that $a=={math.cos(math.cos.inverse($a))}
for every value of a that is within {math.cos.inverse()}
range.
Returns The arc cosine of
number
in radians as afloat
.
https://www.php.net/manual/en/function.acos.php
Last modified: 2021-06-07
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