Otherwise, all the above options are relatively same. The hardest option for this sort of function is to use the plot command. Note: If you plot several functions using ezplot, then the title of the figure will be of the last function plotted. Title(‘Piece-wise function’) %what changes will happen if you delete this command? If you want just to plot this function, then use ezplot with hold on and hold off commands to plot it ‘piece-by-piece’, specifying endpoints.Īxis() %why do you need to do this? To use fplot, you will need to create a function M-file, specifying the three parts of the function separately by using if statements. If you will need this function for further calculations, then use fplot command.

function is not stored in easily accessible M-file,.

must create a function M-file if it is not MATLAB in-build function.

can easily create a graph using only two lines of code.

function is stored in M-file for easy access (via handle) and modification.

> Type in the following and decide which variables are symbolic.

The syms command is actually a shortcut for the sym command. > Type in the following and see if you still get the same error message. However, if we make x a symbolic variable by using the syms x command, then we will be able to create and manipulate formulae without giving x a value first.

The reason for this error message is that you have not first given x a value. > Exercise: Introducing the Symbolic Toolbox Now we will start showing you how, using MATLAB Symbolic Toolbox, you can, not only solve equations, but also perform algebraic manipulations, such as differential and integral calculus like finding the derivative analytically. The past practicals have introduced MATLAB as a powerful programmable graphics calculator.

Matlab symbolic toolbox functions