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@ 2019-10-03T10:30:14Z

<?php

$dist = sin(deg2rad(45.9007)) * sin(deg2rad(45.9007)) + cos(deg2rad(45.9007)) * cos(deg2rad(45.9007));
var_dump(
    $dist,
    acos($dist)
);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
sin: documentation ( source)
cos: documentation ( source)
acos: documentation ( source)
deg2rad: documentation ( source)

preferences:dark modelive preview

64.02 ms | 402 KiB | 5 Q