trigonometry for dummies

Back to "flash Basic Theory Class-Catalog" Starting with this chapter, we will learn trigonometry and apply it to the animation technology in the fifth chapter, actually in the next chapter of the drawing technology will be contacted. If you already have a knowledge of trigonometry or are eager to learn about animation, you can skip the start section and then come back to learn when you don't know what to

Yi Wei public platform interface dummies tutorial, Yi Wei micro dummies. Yi Wei public platform interface dummies tutorial, Yi Wei micro dummies Yi Wei public platform interface dummies tutorial part of content: Interface 9 hyperlink. rmvb interface 8 music information. rmvb

a testing tool is introduced that is not supported by people. People should see the need to improve a specific process, and be aware that the introduction of a specific test tool may ultimately help to accomplish their work more efficiently. If an organization does not sort these three points in order, the sentence "with the test tool, dummies are still dummies" will come true. Or in other words, an organi

introduced that is not supported by people. People should see the need to improve a specific process, and be aware that the introduction of a specific test tool may ultimately help to accomplish their work more efficiently. If an organization does not sort these three points in order, the sentence "with the test tool, dummies are still dummies" will come true. Or in other words, an organization that only i

, canvas.height); A the varDX = mouse.x-arrow.x, +DY = mouse.y-Arrow.y, -Rotate =math.atan2 (dy, dx); $ $Arrow.rotate =rotate; - - Arrow.draw (context); the})();View CodeExample 2, Smoothing motion:Key codeYPos = centery + math.sin (angle) *+ = 0.1;Example 3, Pulse motion:Note that you do not need to clear the canvas here, and you should use Beginpath () when you start drawingExample 4, circular motion:The main point of the circular motion is to use sine to calculate the x-coordinate, cos

integer number to a hexadecimal-represented string.int: Represents a decimal integer that needs to be converted.Example:Tohex (15) equals "F".Tohex (20) equals "14".TooctalTooctal (int): Converts a decimal integer to a string in octal notation.int: Represents a decimal integer that needs to be converted.Example:Tooctal (10) equals "12".Tooctal (20) equals "24".TRUNCTRUNC (number,num_digits): Rounding. The fractional part of the number is truncated to return an integer.Number: You need to trunca

/MATH.PI;}private void Handle_mousemove (object sender, MouseEventArgs e){MousePosition = E.getposition (null);if (ismousecaptured){Lastangle = Math.atan2 (Lastposition.y-canvascenter.y, lastposition.x-canvascenter.x);Currentangle = Math.atan2 (Mouseposition.y-canvascenter.y, mouseposition.x-canvascenter.x);Angledelta = Currentangle-lastangle;Rotateitemcanvas.angle + = Radianstodegrees (Angledelta);Lastposition = mouseposition;}}rotatable UserControl complete codeIt is also very simple to use, d

C-language dummies (1): nested loops-program structure, dummies Loop statement nesting a loop structure can contain another loop, called loop nesting, or multiple loops. The nested loop is a double loop. The outer loop is called an external loop, and the inner loop is called an internal loop. --------- I don't know where the basic concepts come from 　　 　　This is the first blog of the baby. I will not ask fo

Collection--Initialize 250 snowflake objects and animate with colleaguesFlake = new listSnowflake Coordinate CollectionXystart = new listOpacity CollectionOpacityvalue = new listfor (int i = 0; i {Different starting and ending coordinatesPoint newpoint = new Point (Rand.next ((int) layoutroot.width), Rand.next ((int) layoutroot.height));Xystart.add (Newpoint);Different transparency valuesOpacityvalue.add (Rand.nextdouble ());}Initflakes ();snowfall.completed + = new EventHandler (snowfall_compl

the file from the remote host to the local computer16: File Download successful17: If you want to modify the information of the account (such as: Rename the account name, delete the account, etc., do not forget to save), you can follow the following to enter the change account interface18: Select the corresponding account-right--select the corresponding action19: This is the part of the help document about creating new accounts and modifying accounts, want to know more about the content, it is

081107 Dummy, stupid. Chapter chapter. Welcome to ASP. NET 2.0 everyday apps for Dummies, the book that teaches ASP. NET 2.0 WEB programming by example. In the book that you'll find eight complete ASP. NET applications. We're not talking trivial (mediocre) hello-world-type applications here. Instead, they're real-world applications like shopping carts and discussion (discussion) Forums (forum ). You can use any of them as-is, or modify them as you see

J. Timothy King wrote a great article: Twelve benefits of writing unit tests first ). Unfortunately, what he said at the end of the article is completely superfluous. However, if you don't want to get rid of the old habit of writing code first, if you think that self-stick is more important than designing good software, Well, I am sorry for you. Using your pity on people who do not agree with you is not the most effective way to promote your claim. Let's take a look at Mr t's example. He bega

Provides various official and user-released code examples. For code reference, you are welcome to exchange and learn about the complexity of the official permission system. Beginners are often confused and confused. This is my dummies version transformation. Please refer to your tasting. The official rbac. I read a lot of articles, although I finally understood it, but it does consume a lot of brain cells. It also requires database support. It is diff

I am a postmaster for server dummies. I would like to ask if there is any server one-click website opening software to enable FTP and MYSQL databases with one click, space expiration reminder and other functions ------ solution ------------------ you have a good study, it is not difficult to use appserv, all is the next step. Nagix is the most technically demanding one. Server dummies website software I am

This article uses the popular saying "dumb camera" to create the word "dumb Ubuntu", which means automatic or semi-automatic Ubuntu. In this case, the actual level of Ubuntu is not low! Is this true? As you know, the actual users of dummies Ubuntu may not be really dummies. Recently, the Beta3 version of Ubuntu9.10 has just been released. From the perspective of it, the beautiful faces are indeed extraordin

The db2 Tutorial we are reading is: DB2 common dummies 1000 (6 ). 149. ATAN2 ()Returns the arc tangent of the angle X and Y coordinates in radians.SELECTATAN2 (0.5, 0.9) FROMBSEMPMS;　　150. BIGINT ()Returns the 64-bit integer representation of a number or string in an integer constant.SELECTBIGINT (EMP_NO) FROMBSEMPMS;　　151. CEILING () ORCEIL ()Returns the smallest integer value greater than or equal to the parameter.SELECTCEILING (3.56) FROMBSEMPMS;SE

Linux is a lack of dummies-general Linux technology-Linux technology and application information. The following is a detailed description. Today, when talking to friends about Linux, she said that the Linux founder LT said "Gnome treats users as fools" and urges people to use KDE. I think this is the sorrow of Linux. Most computers are also potential users of Linux who are not familiar with computers. Why should they be familiar with computers, what s

Original Blu-ray Disc + mandarin dubbing + Chinese Subtitle and commentary subtitle retention pop-up menu for Dummies Tutorial I found a simple and easy-to-understand tutorial, and forwarded it so that some basic colleagues could learn about it. HereThanksThe hard work of the original author! 1. Obtain the title source.FriendWhen I went abroad for a business trip, I took a few Blu-ray discs back. In this tutorial, I used the movie "The Last

Dummies MySQL v1.5 for Linux User Manual(English name: simplemysql) DreamcodeHttp://blog.csdn.net/Dreamcode/MSN: itecies@hotmail.comSkype ID: javen. China Source code and documentation: http://download.csdn.net/source/1095761 Simplemysql is an open-source software that can be shared by users. It allows users to copy and modify their source code at will, allowing them to sell and spread freely. However, any modification to the software source code must

/* This program is to ask the following questions about dummies taking planes: * 100 people are waiting in line to take a plane with 100 seats. Normally, each of them will sit at the opposite number. However, * The first person on the plane was a dumb. He randomly sat in a seat. When the next person got on the plane, if * When a person is seated, he or she will randomly find a seat to sit down. Otherwise, he or she will sit down. Question: Last * What