where x1, x2, etc. are the numerical values of the variables.
To create a graph with multiple data sets z1, z2, z3 versus x, enter the data as shown above and then type
>>plot(x,z1,x,z2,x,z3)After the graph is created, you can change the line type, marker type, axis characteristics, and figure charactreistics, by using various menus, as shown in the Figure below.
