If we want to evaluate these functions, then use a substitute function (‘subs’) to replace the variables with values. Symbolic variables can further be combined into equations (‘f’). ‘Syms’ allows for a shorthand approach for assigning multiple symbolic variables.Īs a sidenote, ‘sym’ can also be used to represent numbers in their rational form. The function ‘sym’ will allow you to create a symbolic variable, with additional arguments specifying whether the object should be ‘positive’,’real’, and in the case of the second argument being a m x n array, will create m x n symbolic variables. This can be done using either ‘sym’ or ‘syms’. In this tutorial we will investigate how to represent symbolic variables using the functions ‘sym’ and ‘syms’, solve equations using ‘solve’, and plot solutions to these symbolic expressions. While Matlab is known for its capabilities in solving computationally intensive problems, it is also very useful in handling symbolic expressions, and further solving simple algebraic equations.
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