4/12/2023 0 Comments Matlab piecewise function plot![]() In the above code, we defined a piecewise function whose value is -2 if x is less than zero and 2 if x is greater than zero. here n1, n2 are numbers I defined earlier and vj(1,1), vj(2,1) are matrix elements. syms y(x) y(x) piecewise(x<0, -2, x>0, 2, 1) y(-3) Output: ans -2. I need a plot of a piecewise function in MATLAB and I don't know how to do it.For example, let’s define a simple piecewise function. In particular, they may appear in scripts and on the command line. You can also set the value which will be true when no condition is true. If you do so, the name of the file must be the name of the first function, and f can only be called from within myode.m.)Īnonymous functions, on the other hand, may appear anywhere in MATLAB code. Plot a piecewise function of two variables closed Ask Question Asked 4 years, 3 months ago. (You could keep f in a separate file called f.m, but I'd go with one file for both functions. Just evaluate the end points and the plot function will plot a straight line between the end points. So the first code sample needs to be saved in a file named myode.m. Also, for plotting purposes, there is no need to evaluate the equation of a line over several discrete points. The "regular" function approach gives you the most flexibility in describing your ODEs, but MATLAB requires that functions be stored in function files. Piecewise Functions Well show one way to define and plot. This solution exploits the fact that MATLAB coerces logical values to numbers in an arithmetic expression. Piecewise Functions A piecewise function is a function which is defined by multiple sub functions. Plotting a piecewise function in MATLAB Ask Question 1 I've been trying to plot a piecewise function: y (t)asin (2pi f t) for 0 < t < 1/ (2f) y (t)0 for 1/ (2f) < t < 1/f ranging from t0 to t3. Conclusion: in general, you are better off writing a regular function for f, where you can simply use conditionals. MATLAB doesn't have a convenient if-then-else operator like C's question mark. The body of a MATLAB anonymous function is a single expression.
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