Posts Tagged ‘ver’
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
Analysis of Functions, Interpolation, Curve Fitting, Integrals and Differential Equations
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
Controlling Command Window Input and Output
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
bsxfun
bsxfun – Apply element-by-element binary operation to two arrays with singleton expansion enabled
Syntax Read More
arrayfun
arrayfun – Apply function to each element of array Read More
Introduction to Vectors in Matlab
Defining a Vector
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
plot
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