1. The problem statement, all variables and given/known data Hey there. I'm trying to plot a piecewise function in MATLAB and I'm having some decent success, but there's some things I'm wondering. Here's the function: http://gyazo.com/d3493a0c13096878acf5a501af8a7f66 2. Relevant equations 3. The attempt at a solution My strategy was to create an empty array to hold all the y values since plotting the x values is easy enough. I came up with this short snippet of code: Code (Text): function plotFunction() y = ; %Empty array to hold the y values for i=-40:0.05:30 if i <= 0 y(end+1) = 38/11 + sin(i^2); elseif i <= 9 y(end+1) = 38/(11-i); else y(end+1) = 1.5*sqrt(4*i) + 10; end end plot(-40:0.05:30, y); title('Piecewise Function Plot'); xlabel('x-values'); ylabel('y-values'); end This code yields the following plot, which is really close, but there's something wrong: http://gyazo.com/1ef70c9ccf6c44f81c14d9915c9edf86 What's with the funky activity near ##x = -30##? Why does it get all clumped up around there? I tried tinkering with the increment of 0.05, but shrinking it clumps the graph together even more.