Programming a Single Digit LED in Forms/3
These figures show how a programmer would construct a single digit LED in the visual programming language Forms/3. Programs in Forms/3 are entered by defining formulas in cells much like spreadsheets. This figure shows each cell with its formula displayed. There are seven cells that make up the LED (one for each line) and one input radio button set. Each cell checks to see if the input value needs a horizontal or vertical line in this position.