> 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.
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