Okay so I know this will make your head spin but here it goes. This is a calculator (yes indeed) it is a basic representation of a slide rule HOW TO MULTIPLY: We are going to multiply 2*3 Move the bottom to 2 Now on the bottom search for a 3 When you find the 3 look directly up and that notch should be 6th on top so 2*3=6 HOW TO DIVIDE we are going to devide 6/2 move the top to 2 on the bottom, find 6. When you find 6, go directly up and that notch is the 3rd on the top so 6/2=3 EXPONENTS We are going to do 2³ or 2*2*2 Move the bottom to 2 Find 2 on bottom rule Go straight up which should be 4 Find 4 on bottom rule Go straight up which should be the 8th notch on the top 2³=2*2*2=8
Credit to desmos, John naiper, Euler
