Challenge: Generate 24 in the X register / display

[Gene]

Use a single digit repeated 3 and only 3 times and a required total of 3 times. All solutions should incorporate the use of a single digit - the same digit - three times.


PI on the HP-71B is allowed. I suspect it to be a "constant" elsewhere, but I won't worry too much about PI. Use it if you wish, but you must include three instances of 0 or 1 or 2...whichever solution you are providing. Just covering my bases should a 24 be included as some sort of constant for some reason! :-)