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How to graph in matlab
Know a few things about matlab.
Semi-colon operator: if a command is followed by a' ;' then the output will not be printed on the screen. This is trivial when the output is a short assignment, like y = 1, but becomes problematic if a large matrix is created.
Also, any time that an output is desired, like a graph, the semicolon should be omitted. Clear command: there are a few useful command window commands.