Matlab Tutorials » if http://www.matlabtutorials.com Matlab tutorials and examples Mon, 10 May 2010 10:55:51 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 Analysis of Functions, Interpolation, Curve Fitting, Integrals and Differential Equations 2 http://www.matlabtutorials.com/documents/analysis-of-functions-interpolation-curve-fitting-integrals-and-differential-equations-2.html http://www.matlabtutorials.com/documents/analysis-of-functions-interpolation-curve-fitting-integrals-and-differential-equations-2.html#comments Tue, 23 Mar 2010 02:01:13 +0000 matlabtutorials http://www.matlabtutorials.com/?p=127 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

Matlab 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]]> http://www.matlabtutorials.com/documents/analysis-of-functions-interpolation-curve-fitting-integrals-and-differential-equations-2.html/feed 0 Analysis of Functions, Interpolation, Curve Fitting, Integrals and Differential Equations http://www.matlabtutorials.com/documents/analysis-of-functions-interpolation-curve-fitting-integrals-and-differential-equations.html http://www.matlabtutorials.com/documents/analysis-of-functions-interpolation-curve-fitting-integrals-and-differential-equations.html#comments Tue, 23 Mar 2010 01:41:32 +0000 matlabtutorials http://www.matlabtutorials.com/?p=118 In this tutorial we will deal with analysis of functions, interpolation, curve fitting, integrals and differential equations. Firstly, we will need to use polynomials and therefore we have to be familiar with the representation of these. A general polynomial looks like: p(x)=anxn + an-1xn-1 +……….+ a1x + a0 and is represented by a vector in Matlab:
p=[ an an-1 ....... a1 a0 ] Read More

Matlab Tags: Analysis of Functions, continue, curve, Define, differential, end, equations, fitting, for, full, Functions, grid, gui, if, inf, integral, integrals, interpolation, load, matlab, more, plot, polynomial, quit, rem, return, sign, sum, title, tutorials, ver, what, which, xlabel, zeros]]> http://www.matlabtutorials.com/documents/analysis-of-functions-interpolation-curve-fitting-integrals-and-differential-equations.html/feed 0 Controlling Command Window Input and Output http://www.matlabtutorials.com/documents/controlling-command-window-input-and-output.html http://www.matlabtutorials.com/documents/controlling-command-window-input-and-output.html#comments Thu, 18 Mar 2010 22:52:28 +0000 matlabtutorials http://www.matlabtutorials.com/documents/controlling-command-window-input-and-output.html The format Function

The format function controls the numeric format of the values displayed. The function affects only how numbers are displayed, not how MATLAB software computes or saves them. Here are the different formats, together with the resulting output produced from a vector x with components of different magnitudes. Read More

Matlab Tags: Command History, Command Window, continue, Controls, Define, edit, end, for, format, fprint, fprintf, Functions, if, inf, info, magic, matlab, more, return, round, save, sign, sprintf, sqt, statements, ver]]> http://www.matlabtutorials.com/documents/controlling-command-window-input-and-output.html/feed 0 bsxfun http://www.matlabtutorials.com/functions/bsxfun.html http://www.matlabtutorials.com/functions/bsxfun.html#comments Sun, 06 Dec 2009 07:10:20 +0000 matlabtutorials http://www.matlabtutorials.com/?p=114 bsxfun – Apply element-by-element binary operation to two arrays with singleton expansion enabled
Syntax Read More

Matlab Tags: array, arrayfun, divide, division, Examples, Functions, if, ldivide, magic, matlab, mean, minus, rdivide, rem, repmat, return, sum, vectors, ver]]> http://www.matlabtutorials.com/functions/bsxfun.html/feed 0 arrayfun http://www.matlabtutorials.com/functions/arrayfun.html http://www.matlabtutorials.com/functions/arrayfun.html#comments Sat, 05 Dec 2009 19:04:34 +0000 matlabtutorials http://www.matlabtutorials.com/?p=110 arrayfun – Apply function to each element of array Read More

Matlab Tags: array, Array Operations, arrayfun, cell2mat, cellfun, end, Examples, for, Functions, function_handle, if, load, matlab, mean, more, rand, rem, return, sign, spfun, structfun, ver, which]]> http://www.matlabtutorials.com/functions/arrayfun.html/feed 0 idivide http://www.matlabtutorials.com/functions/idivide.html http://www.matlabtutorials.com/functions/idivide.html#comments Sat, 05 Dec 2009 18:59:09 +0000 matlabtutorials http://www.matlabtutorials.com/?p=106 idivide – Integer division with rounding option
Syntax Read More

Matlab Tags: Array Operations, ceil, divide, division, Examples, fix, floor, for, if, inf, ldivide, matlab, mldivide, mrdivide, rdivide, return, round]]> http://www.matlabtutorials.com/functions/idivide.html/feed 0 Introduction to Vectors in Matlab http://www.matlabtutorials.com/documents/introduction-to-vectors-in-matlab.html http://www.matlabtutorials.com/documents/introduction-to-vectors-in-matlab.html#comments Fri, 04 Dec 2009 08:58:26 +0000 matlabtutorials http://www.matlabtutorials.com/?p=94 Defining a Vector
vek
Matlab is a software package that makes it easier for you to enter matrices and vectors, and manipulate them. The interface follows a language that is designed to look a lot like the notation use in linear algebra. In the following tutorial, we will discuss some of the basics of working with vectors. Read More

Matlab Tags: Define, division, end, eps, equations, for, if, load, matlab, matlab vectors, open, pack, rem, round, sign, stem, title, tutorials, vectors, ver, which]]> http://www.matlabtutorials.com/documents/introduction-to-vectors-in-matlab.html/feed 0 accumarray http://www.matlabtutorials.com/functions/accumarray.html http://www.matlabtutorials.com/functions/accumarray.html#comments Wed, 09 Sep 2009 06:43:30 +0000 matlabtutorials http://www.matlabtutorials.com/?p=89 Construct array with accumulation Read More

Matlab Tags: accumarray, array, case, Define, end, Examples, for, full, if, length, matlab, more, repmat, return, sparse, Subscripts, sum, vectors, which]]> http://www.matlabtutorials.com/functions/accumarray.html/feed 0 abs http://www.matlabtutorials.com/functions/abs.html http://www.matlabtutorials.com/functions/abs.html#comments Wed, 09 Sep 2009 06:39:30 +0000 matlabtutorials http://www.matlabtutorials.com/?p=87 Absolute value and complex magnitude
Syntax Read More

Matlab Tags: abs, angle, array, Examples, if, matlab, return, sign, unwrap, which]]> http://www.matlabtutorials.com/functions/abs.html/feed 0 plot http://www.matlabtutorials.com/functions/plot.html http://www.matlabtutorials.com/functions/plot.html#comments Thu, 13 Aug 2009 19:36:06 +0000 matlabtutorials http://www.matlabtutorials.com/?p=83 plot Linear plot.
plot(X,Y) plots vector Y versus vector X. If X or Y is a matrix,
then the vector is plotted versus the rows or columns of the matrix,
whichever line up. If X is a scalar and Y is a vector, length(Y)
disconnected points are plotted. Read More

Matlab Tags: angle, axes, axis, clc, clf, colordef, Define, end, for, grid, hold, if, legend, length, loglog, plot, return, semilogx, semilogy, stem, subplot, title, vectors, ver, which, xlabel, ylabel]]> http://www.matlabtutorials.com/functions/plot.html/feed 0