MATLAB homepage, documents and downloads - mathematical software - OSCHINA - Chinese open source technology exchange community

MATLAB is the abbreviation of Matrix Laboratory. It is a commercial mathematics software produced by MathWorks of the United States. It is an advanced technical computing language and interactive environment for algorithm development, data visualization, data analysis and numerical calculation, mainly including MATLAB and Simulink.

MATLAB Together with Mathematica and Maple, it is called three major mathematical software. It is second to none in numerical calculation among mathematical science and technology application software. MATLAB can perform matrix operations, draw functions and data, implement algorithms, create user interfaces, connect programs of other programming languages, etc. It is mainly used in engineering calculation, control design, signal processing and communication, image processing, signal detection, financial modeling design and analysis and other fields.

The basic data unit of MATLAB is matrix, and its instruction expression is very similar to the form commonly used in mathematics and engineering, so it is much easier to solve problems with MATLAB than to complete the same thing with C, FORTRAN and other languages, and mathwork also absorbs the advantages of software such as Maple, making MATLAB a powerful mathematical software. In the new version, support for C, FORTRAN, C++and JAVA has also been added. It can be called directly. Users can also import the utility programs they have written into the MATLAB function library to facilitate their future calls. In addition, many MATLAB enthusiasts have written some classic programs that users can download directly.

MATLAB consists of a series of tools. These tools are convenient for users to use MATLAB functions and files, many of which use graphical user interfaces. It includes MATLAB desktop and command window, history command window, editor and debugger, path search and browser for users to browse help, workspace and files. With the commercialization of MATLAB and the continuous upgrading of the software itself, the user interface of MATLAB has become more and more sophisticated, more close to the standard interface of Windows, more human-computer interaction, and simpler operation. And the new version of MATLAB provides a complete online query and help system, which greatly facilitates the use of users. The simple programming environment provides a relatively complete debugging system. The program can run directly without compiling, and can report errors and analyze the causes of errors in a timely manner.

Matlab is a high-level matrix/array language, which contains control statements, functions, data structures, input and output, and object-oriented programming features. The user can synchronize the input statement with the execution command in the command window, or write a large and complex application program (M file) before running together. The new version of MATLAB language is based on the most popular C++language, so its syntax features are very similar to C++language, and it is simpler and more consistent with the mathematical expression writing format of scientific and technological personnel. Make it more convenient for non computer professionals to use. Moreover, this language has good portability and extensibility, which is also an important reason why MATLAB can go deep into various fields of scientific research and engineering calculation.

MATLAB is a set of computing algorithms. It has more than 600 mathematical operation functions to be used in the project, which can easily realize various calculation functions required by users. The algorithms used in the function are the latest research results in scientific research and engineering calculation, and have gone through various optimization and fault tolerance processing before. In general, it can be used to replace underlying programming languages, such as C and C++. In the case of the same calculation requirements, the programming workload using MATLAB will be greatly reduced. These function sets of MATLAB include the simplest and most basic functions to complex functions such as matrix, eigenvector and fast Fourier transform. The problems that can be solved by functions generally include matrix operation and solution of linear equations, differential equations and partial differential equations, symbolic operation, Fourier transform and statistical analysis of data, optimization problems in engineering, sparse matrix operation, various operations of complex numbers, trigonometric functions and other elementary mathematical operations Multidimensional array operation, modeling and dynamic simulation, etc.

MATLAB has convenient data visualization function since its birth, which can show vectors and matrices with graphs, and can label and print graphs. High level drawing includes 2D and 3D visualization, image processing, animation and expression drawing. It can be used for scientific calculation and engineering drawing. The new version of MATLAB has greatly improved and perfected the entire graphics processing function, making it more perfect not only in the functions that are possessed by general data visualization software (such as the drawing and processing of two-dimensional curves and three-dimensional surfaces), but also in some functions that are not possessed by other software (such as the lighting processing, chroma processing of graphics, and the performance of four-dimensional data), MATLAB also shows excellent processing power. At the same time, for some special visualization requirements, such as graphic dialogue, MATLAB also has corresponding function functions to ensure the requirements of users at different levels. In addition, the new version of MATLAB also focuses on making a great improvement in the graphical user interface (GUI). Users with special requirements in this area can also be satisfied.

Happy LeapFrog 2024-05-18 09:18

But the question is: "What's the use of this for ordinary Android users?" Now the answer seems to be: "Almost nothing.".

osc_92224065 2024-04-29 10:57

Long term oppressed outsourcing of state-owned enterprises

People are addicted to food 2024-06-01 13:53

History history combination

sweet potato chips 2024-05-31 22:08

Glue code consumes few resources

Bright 2024-05-19 23:25

What a fool! I killed myself. How can people deal with me later.

monkey_cici 2024-05-09 00:25

My I9 CPU, 64GB memory module and 3080Ti computer are inferior to the top configuration of 19999 on a tablet

One code Yma 2024-05-06 09:14

My technical article was moved by CSDN. Why didn't anyone step on the sewing machine? This kind of report is a joke to me. The monsters with background are fine, and the monsters without background fight to death

Small and beautiful software development 2024-06-01 05:06

Cheat one's job

Chief taxi captain 2024-05-17 11:17

I suggest that 360 open source all its products, and then become the leading enterprise in the domestic open source industry through open source, leading everyone to compete with foreign enterprises

Love to eat raw pears 2024-06-01 19:18

Don't expect programmers to have a deep understanding of the document. I still think that since the tool hides the details of $#, some necessary security checks are necessary. Many people do not use MybatisPlus directly, but use various so-called rapid development platforms. The MyBatisPlus rapid development platform Snowy, Guns, etc., has an impression that many versions have the problem of using Wrapper directly to splice the Request parameter. I remember that JeecgBoot was opened a lot of CVEs last year or the year before last because of the Wrapper splicing problem. Do you know the author of ibeetl? Many CVE blaming holes have been opened before. The problem is similar. The lack of basic knowledge "script editing permission" is actively handed over to the front end. What a low-level error or even low-energy behavior. However, I accepted it with an open mind and added a white list check.

oldpig 2024-04-28 09:59

”Huawei contributed all the source code "?, the title is completely inconsistent with the content.

osc_566335 2024-04-28 14:44

This is also called floor washing? Does it mean that Tesla will not wash the floor if it releases all the source code? Some people HWptds? That is to say, the language is ambiguous, which will also rise to the washing ground? Are some people too focused? Think the people he pays attention to must be staring at?

CodeDoger 2024-05-02 20:48

35 It's too old to go to work and too early to retire at 60

Monkeys think of apes 2024-05-31 18:31

You can cheat your brother. Just don't cheat yourself

All the way north GP 2024-04-25 14:55

America, the future of mankind

osc_25732934 2024-06-01 19:30

It seems that the current version of the Foreign Function&Memory API is not as fast as that of jni, or even worse. In addition, before vallhala comes out, all interactions between java and c have to get an additional memory. Even if it comes out, it may not be possible to directly throw a copy of binary data into memory as a structure. When the two apis are completely stable, the day lily is cold

gamedot 2024-05-17 11:14

Old Zhou is deeply concerned about Huawei's great cause of open source. He is not a Huawei person, but has Huawei's soul.

Voice of God 2024-06-01 20:47

By default, injection ($) and splicing are turned off. If you want to use it, you need to sign the birth and death form and press the fingerprint.

hanf 2024-05-31 17:45

If only the design and architecture are similar, what's the point? Good things must be learned, and you can't prove that the design is not the same. As for the source code, you also said that neither Oracle nor Damon is open source, and you can't prove it. There are many people who question Dream, but so far, no one has come up with strong evidence. You should at least provide evidence to copy

sunday12345 2024-05-15 18:31

What does the bank do? It's blamed on the remote desktop. Persimmons really pick up soft pinches~?

Dogo_Little People 2024-06-02 12:24

Not everyone will go to see the document in full detail. As a general basic framework, the method naming should consider not only readability but also understandability. At least, it should also establish a cognition for developers. LambdaQueryWrapper is recommended. The official only briefly said that QueryWrapper may lead to SQL injection risks, There are no detailed examples (many people don't understand what SQL injection is). Now I met a jerk and submitted it to CVE to see who is the most powerful

One code Yma 2024-05-09 09:58

Recently, I often go to interviews. People who hate Ali background most regard me as a fool, even though I am a fool

-SORA- 2024-06-01 09:30

American characters

Brother Xiao Yang 2024-06-01 20:39

Isn't Ali developed? What are you afraid of? There's no need for every family to set up a set

xiaoqibabby 2024-05-15 17:36

The bank is strongly required to be responsible for

Bright Stars 2 2024-05-31 23:28

Remove Unsafe? You don't want netty anymore?

Yoona520 2024-05-17 16:34

Zhou Hongyi is now living more and more like a clown. If he stays behind the scenes, he has to become an online celebrity. Can you learn from Lei Jun?

Xiao Xu Middle aged 2024-05-31 19:13

Very good

young crops 2024-06-01 16:21

There is no tipping point. There are also many official documents stating that SQL fragments involving direct string splicing need to be controlled by the user, and specific solutions are also provided. If you say that the value part is injected, then we are also 100% free of any dispute. This obvious SQL fragment is unrealistic for ORM to explain without your control, Since SQL allows splicing fragments, there must be some scenarios that cannot be forced into non SQL strings. It is also very simple. Have you ever thought about why not force them???

zzeric 2024-04-28 20:01

Although France is the parent community, the core developers of OCCT on github are all Russians. Without Russians, the French parent community cannot continue to operate. So Huawei took over, moved to China, changed its name and resumed open source and community operations. What's the problem?

kakai 2024-05-10 10:21

The world only knows that Android was created by Google. Several people know that Android is only a product acquired by Google. Similarly, what is the problem with Huawei's contribution to the collection of OGG open source work and integration into its own proprietary product line?

Code craftsman 2024-06-01 11:22

I also said "user controllable parameters"

Love to eat raw pears 2024-06-01 11:48

Why is this so-called "vulnerability" not a vulnerability? Spring, MyBatis and other frameworks can accept all kinds of CVE criticism, while MyBatisPlus has to dump the pot and accuse programmers of being too low-level# There is a difference. The premise is that you write XML, MyBatisPlus encapsulates Wrapper and claims to simplify code. Since it encapsulates and hides $#, it is not appropriate to do some necessary security checks? Instead of doubting the authority of CVE, you should know that SQL ->MyBatis ->MyBatisPlus ->various back-end scaffolds have multiple layers, each layer is simplifying, and each layer is throwing away the upper layer of the boiler. Who dares to use them. The programmers who use MyBatisPlus can't be expected to be at a high level. Every programmer wants to save effort. The front-end parameters can be directly obtained by HttpServletRequest from the back-end. Wrapper splicing can be found everywhere. If something goes wrong, is it the front-end or the framework? According to Qingmiao, can the injection vulnerability of the previous log4j and the deletion vulnerability of the Druid be used to eliminate low-level programmers?

Xiao Xu Middle aged 2024-06-01 06:49

thank

Yokesily 2024-06-02 15:11

So designed

The seven in one little King Kong 2024-06-02 15:54

Those people only use resources, others are not developed by NPM...

kangaroo 2024-06-01 22:23

The next version focuses on improving existing functions * improving internal power and qi * and continues to move towards the goal of Grand Master.

Apizza 2024-06-01 17:52

You can switch from lodash to radash in 2024!!!

Yeah, for 2024-05-17 13:42

That's too right. Old Zhou can't control Google, but he can control 360. Do not do to others what you do not want. All 360 products should be opened first.

Hakuna 2024-05-31 18:28

It is compatible with Oracle, but does not know "just" or "just". Those who can be compatible with Oracle and do well are real men and real warriors. You should know that compatibility means that even bugs must be compatible, and you have no other code that can not be copied. It's all based on real skills and understanding of oracle.

Shen Lang Panda 2024-06-01 08:16

You can directly ask questions in the project work order. The comment area is not suitable for answering such questions

Xiao Xu Middle aged 2024-06-01 07:03

good

Starry Night Destiny 2024-06-01 21:49

It feels like Mybatis. It's OK to provide users with optional security solutions. It's useless for users to complain about this problem

Single structure 2024-05-11 10:09

Selected as Open Source China's disgrace pillar

Ning Jinnong 2024-06-01 21:04

Correct it. The example of loading the library is wrong. It should be # library=@ loading the dynamic library, "./yards to the treasurer. dll"

zhy 2024-05-16 13:16

At the end of Shannon is Nong

-SORA- 2024-04-30 17:07

When this happened in a foreign country, the comment area suddenly became very objective and rational**

Ma Nong Little Fatty Brother 2024-05-16 14:40

I give you six seconds. I give you six moves with the same effect in the martial arts contest, which shows the invincibility and confidence of the master

Qin Liming 2024-05-11 09:12

be devoid of any sense of shame

Li Yinghui 2024-05-09 16:40

Buddhism has a good word, evil opinion. In dealing with the world, it is meaningless to draw conclusions from preset positions; It is also important to receive good logic training.

MrChen89 2024-04-29 09:18

There are a group of people like this. I don't know what they have experienced. When it comes to HW, I can't say anything good, even if it's neutral

Francesca 2024-05-19 18:00

Wine runs the Android emulator of Windows. Chrome OS is installed in the Android emulator. Linux environment is installed in chrome OS. Linux environment is installed in the Linux environment. Wine is installed in the Android emulator

jalena 2024-05-31 23:57

I can imagine that I will also receive the CVE repair request next week..... I don't use the key!!!!!!!!!

looly 2024-06-02 14:32

@Qingmiao Hutool has also been mentioned some loopholes that I think are relatively "low-level", or I think are not loopholes. At first, I was also very angry, but after thinking it through, I found that CVE's idea was that once you did not actively remind users that there was a pit, the user fell into the pit is your fault, that is, your vulnerability. For example, as a traffic policeman, you should remind everyone who crosses the road to pay attention to safety, and ask him to answer whether he knows. Once you don't remind someone and are hit by a car, you can't get away from it. Similarly, when using frameworks and tools, you should provide at least one parameter to remind users that there may be SQL injection vulnerabilities. Note that it is not in the comments, but in the method parameters, which is the user's responsibility. Therefore, it is not comprehensive to provide solutions in comments or documents.