fork download
copy 
  1. <?php
  2.  
  3. echo rad2deg(acos(3/5));
  4.  
  5. ?>
Success #stdin #stdout 0.01s 20520KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
53.130102354156
https://ideone.com/0NpSC3
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!