What happens if we try a number system based on 2^(1/3)? I guess it will be binary system interspersed with 2 additional significant places. Am I correct? ]]>

Otherwise, your best bet would be to use a digital multimeter (DMM) to check voltages around the circuit. A new swing does not cost much more than a DMM, so if you do not already have one, you might be better off just buying a new swing.

]]>“Subtraction can be implemented as the addition of the inverse”

What is “the inverse”? How do I compute 1 – sqrt(2) ? Or even represent it?

]]>