Parfor parallel programming in MATLAB
Generally, the program that consumes the most computing resources is a loop. Parallelizing loops or optimizing code in the loop body is the most commonly used idea to speed up program running.
MATLAB provides the parfor keyword to facilitate parallel computing on multi-core machines or clusters.
Use of the parfor keyword
function has more than one output variable, the output variable is included in brackets.
The function workspace variable nargin contains the number of input parameters and nargout contains the number of output parameters.
Error displays a string in the Command window, giving up function execution, and returning control to the keyboard
Script File-a set of MATLAB commands arranged by user intent
The variables generated by running the script file r
Introduction
Wavelet analysis in the 80 's began to develop a mature branch of mathematics, its application field is very wide, and gradually become a signal analysis of another powerful tool. MATLAB wavelet Toolbox provides us with wavelet multi-scale decomposition function, which facilitates the use of wavelets. However, the software written by it can not be separated from the MATLAB
In matlab/c++ mixed programming, all data types related to variables are mxarray types, so access to Mxarray is essential, data structure Mxarray and a large number of MX start functions, widely used in MATLAB and C, C + + mixed programming.
Mxarray's related operations are:
1, create and clear the Mxarray type data
Tools used in this article: vc6.0+matlab6.5
In this chapter is achieved in the VC call Matlab Neural Network Toolbox, the article used in the program is a master's thesis part, so did not provide source program, the purpose is through this example to introduce how to use the VC COM components to achieve VC and MATLAB data exchange. First in the MATLAB to complet
window handles (you can define your own data structure)Then in a sub-callback function, the data can be passed through handles:function Sliderbar1_callback (hobject,eventdata,handles)Percent EG1V1=get (hobject, ' value ');Obj=handles. Text1% Direct positioning of the TAG as a Text1 controlSet (obj, ' value ', v1);Percent EG2Handles. MYSTRUCT.P1=V1; % change the data in handlesGuidata (Hobject,handles); % UPDATE handles!! ImportantEnd2. Using the UserData of the control to pass the valueEach con
Busy for the most part of the semester fingerprint, palm processing, here a little to sort out someGoal
Find the center point and Triangle Point of fingerprint image, count the number of interval ridge lines, complete the fingerprint classification.
Function
The processing that needs to be done includes:
Segmentation foreground and background (using gradient map, direction field realization);
Enhanced fingerprint image (through equalization, Edge convergence, smoothin
Prior to MATLAB programming, drawing is always a very important part, here to tidy up the usual drawing functions for backup.
One or two-dimensional curves and graphs
MATLAB provides a variety of drawing commands for two-dimensional graphics
Command name
Meanings and functions
Area
surface area graph; Mainly used for expressing pr
This program in the vc6.0+matlab6.5 environment through the mode, VC and MATLAB interface programming, using the compiler to compile m files into c\c++ files, and then in VC call the C\c++ file is the most commonly used method. In this example, although the use of functions in the C\c++ function library, but compared to the full use of c\c++ function writing program to a lot simpler, visible to be flexibl
Linear programmingLP (Linear programming, linear programming) is an optimization method in which both the objective function and the constraint function are linear functions of the vector variable, and the LP problem can be described as:Min xS.T.A x BAeq x=beqVLB x vubWhere b,beq are vectors, A,aeq are matrices, and x is vector variables. Matrices A and B are coefficients of linear inequality constraints, a
Matcom is a tool that mathtools the company to convert m files to the same functional C + + code. Compared with the compiler compiler MATLAB, it is simpler and more convenient to transform the code with matcom. This article will combine the author programming experience, take VC6.0 and matcom as an example, detailed introduction how to use matcom to carry on the joint p
VC and MATLAB mixed programming call dynamic link library dll--1, is the first to establish the M file matlab.Ellipsefit.mIt contains: function [Xc,yc,a,b,phi,p]=ellipsefit (x, y)2.MCC command compilation generated by H, DLL, lib and other filesIn the MATLAB command line, enter:mcc-w cpplib:ellipsefit ellipsefit.m-t link:lib (this mode is C + + style function)(Th
Tags: data source from Mat cursor Exce UI WINDOWS10 Close resolutionRecently in the use of MATLAB to do the course project, involving the data additions and deletions, initially decided to use Excel as the target data file, and later for programming simple, decided to use Access to do data files. The first thing to solve is, configure the desktop data source, My computer is WINDOWS10, so win+s, pop-up searc
Tools: VC6.0 + MATLAB 6.5
Realization function: User input data, complete data fitting
Preparation: Set up library and header file paths in VC, see Joint programming
Steps:
1, the establishment of a CESHIDLL.M-m function file, the function is to enter two sets of data to complete the interpolation of two sets of figures, and the results graphically indicated:
The contents of the CESHIDLL.M file are as
LP (Linear programming, linear programming) is an optimization method in which both the objective function and the constraint function are linear functions of the vector variable, and the LP problem can be described as:Min xS.T. A x B Aeq x=beq VLB x vubWhere b,beq are vectors, A,aeq are matrices, and x is vector variables. Matrices A and B are coefficients of linear
The operational and decision-making problems of MATLAB
Linear programming problems
Function:Linprog (F,a,b,aep,bep,lb,ub)
Parametric analysis:F: The coefficient arrangement of the objective functionA: The coefficient matrix of the constraint conditionB: Result of the augmented matrix of the constraint conditionAEP: The coefficient matrix of the equationBEP: The result matrix of th
. Understanding this book is a good basis for thinking about software team management."Rapid development" (Rapid development:taming Wild Software schedules)Steve C. McConnell(with photocopy, Chinese version)Steve McConnell captured a lot of Microsoft's development management ideas in the first decade of their development of large-scale software. You will find that the ideas in this book overlap with my orig
Recent mixed Programming with C + + and MATLAB has encountered some problems, as follows:??? Unexpected standard exception from MEX file.What () Is:c:programError in ==> Mscale at 32 [Rho,s] = Matscale (ABS (a), 0.01 );Error in ==> utscaledexpm at 7[S,junk,a] = Mscale (A, ' noperm ', ' Safebal ');Error in ==> Ssdata.utdiscretizezoh at 171 s = utscaledexpm ([[A b]*ts; zeros (NU,NX+NU)]); Error in ==>
uncertain.However, the most important concept that this chapter will learn is not how to use the existing functional programming libraries, but how to use all the libraries that can enhance JavaScript functional programming. This chapter is not limited to one or two libraries and we will explore as many libraries as possible in order to examine the style of all JavaScript functional
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.