the algebra fx series is capable of generating different types of two-dimensional plots. compatible graphs include rectangular one-variable functions, polar equations, parametric equations, and inequalities, where users can store and plot simultaneously up to 20 graphs. the composite functions made of up to 5 other functions can also be drawn. the calculators provide options to control what appears on a graph screen including graph range and zoom functions. curves on the graph can be traced by a cursor, where local maximum, local minimum, and intersections of the curves can be solved by a graph solver tool.