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Matrix solution R = V = ’ I = R \ V If we had iR = V instead, we’d use ‘right’ division: ( i = R / V ) roughly the same as: i = VR-1.* A= B= E=linspace(0,5,3) L=ones(4) What does the ‘ do?.Arithmetic just like with scalars! (But need to take care that dimensions agree).J = H( : ) Assuming A = What does this do? Matlab stores array elements in column-major order.Can apply to the entire array to get all the elements as a column vector.Can apply to the dimensions of the arrays to access all the elements of a row or column.
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#Freemat function as script windows
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help name(provides information on command name).clear (clears all user defined variables).whos (more detailed information about what is in memory).who (information about what is in memory).Useful commands (see documentation for more details!).even scalars are stored as 1x1 array of double floating point value.Octave as a ‘scratch pad’ dynamically typed Matlab as a ‘scratch pad’ Info on variables in the workspace Variables are dynamically typed QtOctave GUI Enter commands at the prompt Octave Command Line Enter commands at the prompt 6.5) Environment (GUI)Default Window Layout Workspace/Current Directory Window Workspace: lists variables Directory: files in current dir Command Window Interactive ‘scratch pad’ Command History Window Octave and FreeMat are open source and free: (main page) (main page) Key point!.
#Freemat function as script software
Matlab is commercial software (a student version is available).Controls, signal processing, data analysis, and other specialized ‘toolboxes’ are available.Oriented toward engineering, mathematical, and scientific computing.They abstract away the nitty-gritty details.Create script files to execute a sequence of commands.Navigate the Matlab user interface and Octave command line.Matlab/Octave/FreeMat (M/O/F) for engineering applications.Lecture 13: M/O/F/ for Engineering Applications - Part 1 BJ Furman 26NOV2012