Here is a regex to check for integer powers of four: https://codegolf.stackexchange.com/a/223129 https://codegolf.stackexchange.com/a/223129 And a regex to int

Here is a regex to check for integer powers of four: https://codegolf.stackexchange.com/a/223129 https://codegolf.stackexchange.com/a/223129 And a regex to integer-divide numbers by the square root of 2: https://codegolf.stackexchange.com/a/198428 https://codegolf.stackexchange.com/a/198428