Drawing filled curves
When you want to highlight the difference between two curves or datasets, or show when your data values exceed some reference value, the filled curve style, with some encouragement, can be made to serve. The following figure shows an example of filled curves:
For the main recipe, you should be ready to go. If you want to try the commands for creating the second plot in this section, as shown in the next figure, you need another datafile
intersection, which we have provided. This consists of the numerical output of a program that simply calculated the coordinates of a straight line and a parabola. You can substitute ...