MATLAB command while

The Matlab program Main NG2. m has implemented the additions for a termination criterion and numerical derivatives. Refer to the Matlab Help Desk for information on the while end loop and also the break command. 

The dimensions are as follows Y is an mxn matrix where m>n, U is an mxn matrix as well, while S and V are nxn matrices. Matlab delivers the above economy sized dimensions only if the following command is used ... 

Note further that the entries of one row of a matrix (or of a row vector) can be entered into MATLAB s workspace either separated by a blank space or by a comma, while a semicolon indicates the start of a new row. A comma or a blank at the end of a command line will cause screen display of the object that has just been defined, while a semicolon after a command will not. 

The latter command will give the answer as 6.2832 in format short g, while the screen output will be 6.283185307179586e+00 in format long e. Powers of the base 10 are always displayed in MATLAB via the e-extension as be a in format e. Thus 400 = 4e+02 and 1/1000 = le-03 in MATLAB s exponential output and screen display. Format statements can be entered at any prompt such as format short, or inside MATLAB code where desired. Commanding format toggles the output format back to the previous format setting. 

These indicate the limit of our successful numerical BVP integrations near the bifurcation points. In between the x and o marks on the middle branch, the curve is drawn using interpolation of our successful BVP solutions data, while in between two adjacent x or two adjacent o marks, the curve is drawn by extrapolating nearby computed function data. This is done automatically by MATLAB s plot commands. 

The most recent revision of MATLAB Version 4.0 for Windows, contains modifications in the random number generator options. In MATLAB 4.0, the rand command generates numbers from a uniform distribution between 0 and 1. The command randn is used for random generation of values within the unit normal distribution (N(0,1)). Previous versions used the rand command for both distributions with the switches rand( normar) and rand( uniform ) to designate the distribution to use on subsequent rand commands. While the... 

MATLAB provides main categories of functions. Some of MATLAB s functions are built into the interpreter, while others take the form of M-files. The M-file functions, and in the case of the built-in functions, M-files containing only help text, are organized into directories, each containing the files associated with a category. The MATLAB command help displays an online table of these main categories. 

The transpose of a matrix M is calculated using the command M. The inverse of a matrix M is calculated as inv(M). In MATLAB, the multiphcation of matrices A and B is denoted by A B, while their addition and subtraction are denoted by A -h B and A - B, respectively. Commands for element-by-element multiphcation and division are also available. For more functions and help on any MATLAB operation, type help. 

While a sequence of commands in the Command Window can implanent many algorithms, it is awkward if selection (if-then-else) or repetition (e.g., while) logic is involved. The best way to do programming in MATLAB is to construct an M-flle (comparable to a VBA Macro). These are called M-flles since the automatic file type is. m. 

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