Click the green flag, and then enter in the values. You can also backpack the ()^() custom block from see inside in the Scratch Cat sprite. Note that this will not work for non-real results (I can prob modify it if anyone wants one somehow) Edit: it also doesnt check for 0^0 lol, though you can add that in if you want by checking if both are equal to 0
Fixed some issues with the old one (like the text being covered at the top) and typos Shared from Scratch 2.0 on Windows 7 :P Also, if you can only enter in numbers in the exponent block, that's due to a feature that was in 2.0 There might be some floating point error