3.3. Fplots

MATLAB includes another 2-D plotting function that comes in handy when working with either function handles, anonymous functions, or symbolic math functions (Function Handles, Symbolic Differential Equations). The plot, annotations, and options are the same as the plot function. However, instead of passing vectors for the \(x\) and \(y\) data, we give fplot a function and a range of values for the \(x\) axis. The default \(x\) axis range is \(-\)5 to 5.

In addition to being convenient when working with function handles or symbolic math functions, fplot also correctly handles plotting difficulties, such as data discontinuities. A good example of this comes from the trigonometric tangent function, shown in figure Fig. 3.11,

>> fplot(@(x) tan(x), [0 2*pi])
The fplot function handles the data discontinuities of the tangent function.

Fig. 3.11 The fplot function handles the data discontinuities of the tangent function.

Note

Now work on The Flight of a Home Run Baseball.