Posts Tagged ‘help’
Analysis of Functions, Interpolation, Curve Fitting, Integrals and Differential Equations 2
Localize minima and maxima of functions
Let us try to find the local minima and maxima for the function func(x). The interval of interest is [-6 0]. The algorithms are iterative. There are 2 methods to use. The first one decides x in a given interval, and the second one looks for x around an initial guess. To decide the maxima we are looking for an x that minimizes the negative function: -func(x). Read More
Tags: Analysis of Functions, applications, Command Window, curve, Define, differential, end, equations, Examples, fitting, for, format, full, Functions, grid, help, hold, if, inf, info, integral, integrals, integrand, interpolation, legend, load, matlab, mesh, meshgrid, minus, plot, polynomial, rand, randn, rem, round, sign, sum, title, tutorials, ver, what
type
type List M-file.
type foo.bar lists the ascii file called ‘foo.bar’.
type foo lists the ascii file called ‘foo.m’. Read More
save
SAVE Save workspace variables to disk.
SAVE FILENAME saves all workspace variables to the binary “MAT-file”
named FILENAME.mat. The data may be retrieved with LOAD. If FILENAME
has no extension, .mat is assumed. Read More
Matlab Expressions
Variables
Like most other programming languages, the MATLAB language provides mathematical expressions, but unlike most programming languages, these expressions involve entire matrices. Read More
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Manipulating Matrices
Matrices and Magic Squares
In MATLAB, a matrix is a rectangular array of numbers. Special meaning is sometimes attached to 1-by-1 matrices, which are scalars, and to matrices with only one row or column, which are vectors. MATLAB has other ways of storing both numeric and nonnumeric data, but in the beginning, it is usually best to think of everything as a matrix. The operations in MATLAB are designed to be as natural as possible. Where other programming languages work with numbers one at a time, MATLAB allows you to work with entire matrices quickly and easily. A good example matrix, used throughout this book, appears in the Renaissance engraving Melancholia I by the German artist and amateur mathematician Albrecht Dürer. Read More
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Desktop Tools
This section provides an introduction to MATLAB’s desktop tools. You can also use MATLAB functions to perform most of the features found in the desktop tools. The tools are: Read More
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end
end Terminate scope of FOR, WHILE, SWITCH, TRY, and IF statements. Without END’s, FOR, WHILE, SWITCH, TRY, and IF wait for further input. Each end is paired with the closest previous unpaired FOR, WHILE, SWITCH, TRY or IF and serves to terminate its scope. Read More