Analog Input. In this example we use a variable resistor (a potentiometer or a photoresistor), we read its value using one analog input of an Arduino or Genuino board and we change the blink rate of the built-in LED accordingly. The resistor's analog value is read as a voltage because this is how the analog inputs work.
For the Haigis formula, the a0 constant moves the power prediction curve up, or down, in much the same way that the SRK/T A-constant. The a1 constant is tied to the measured anterior chamber depth and the a2 constant is tied to the measured axial length.
One of the most important formulas satisfied by the Gamma function is. for any x > 0. In order to show this formula from the definition of , we will use the following identity. (this is just an integration by parts). If we let a goe to 0 and b goe to , we get the desired identity.