You also could consider adding the line y = zeros(size(t)) in the second function before the pieces are evaluated to avoid occasional memory reallocation in some cases (probably not costly in current Matlab version unless the function has many pieces and/or is called many times). To define a piecewise function or expression in MATLAB, you can use the piecewise() function. However, here's a solution similar to that of that uses logical indexing to avoid extra multiplication, addition, and also sets values outside of both ranges to NaN: function y = f(t) You don't need to use if statements necessarily to do the piecewise and could just use logical indexing. We’ll use a vectorized way: no scalar values or. Piecewise Functions We’ll show one way to define and plot them in Matlab without using loops. Matlab code: > z Inline function : Z ( x ) x. ![]() You can always concatenate the data from your two functions before plotting. Piecewise Functions A piecewise function is a function which is defined by multiple sub functions, each sub function applying to a certain interval of the main function's domain. For symbolic math you can take advantage of MuPAD within Matlab. To solve the above equation in Matlab, we need to create an inline function for z and need to assign one independent variable.
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