Start with entering the values regarding the situation. Enter the load… The E-modulus or Youngs modulus can be found on the second tab of the sheet for a lot of materials. You will still have to manually calculate the Moment of Inertia. Or download a sheet for that too. The value ‘X’ is the distance from the wall to the point from which you want to know the deflection/gradient. The sheet will convert values to the right expression. It will calculate the deflection at X, the gradient at X, and the deflection at the end of the beam. There are four different situations/loads that can be calculated.