How do you make complex mathematical formulas in Word 2010? We all come across some of these formulas in school documents and at work, especially when we do a final review with a lot of formulas, financial and other science majors. In this way, we need to learn how to enter some formulas in the document, the basic use
When using matplotlib drawing to add a formula to a picture, it is generally necessary to use the text or annotate function, combined with latex grammar ' $...$ '.For fractions, if you use \frac{}{} directly, the characters on the numerator denominator are small, as shown in the Green formula.To solve this problem, we need to use the \displaystyle, that is, using the ' $\displaystyle ... $ ', as shown in the Blue formula in the effect. However, the prerequisite for using this is that the system
have a little bit of formulas. To make such an effect, we only use junior high school .. Or the formula of physical knowledge, acceleration, and deceleration in high school. So it is indeed a small formula. The landlord is very fond of tossing some cool things. Although he may not be able to work at ordinary times, this pleasure is really fascinating. In addition, doing so can also enhance the Thinking Ability of programming.
Let's talk about theme.
Problem Source: http://www.cnblogs.com/del/archive/2008/08/16/1268786.html#1289015
In this example, both Delphi 2007 and Delphi 2009 are debugged and run:
Code file:
Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; button2: tbutton; button3: tbutton; Procedure button1click (Sender: tobject); Procedure button2click (Sender: tobject); Procedure button3click (Sender: tobject);
During image processing, we generally use RGB space, but in some special cases, we also use other color spaces. This article mainly introduces some common color space concepts and conversion formulas.
The essence of color is a light wave. It exists because there are three entities: Light, observed object, and observer. The human eye uses color as a light wave formed by the observed object absorbing or reflecting different wavelengths. For example, whe
, and later encountered a data, dropped into this plane, see in the straight line which side, is which category.For example x+y-2=0 this line, we put the data (x, y) into, as long as the x+y-2>0 is a class, X+y-2And so on, there are three-dimensional, four-dimensional, n-dimension attributes of the classification, so the structure may not be a straight line, but the plane, super-plane.A three-dimensional function classification: x+y+z-2=0, this is a classification of the plane.Sometimes, the lin
distribution is expanded to the multi-dimensional Dirichlet distribution (Dirichlet distribution). The multi-dimensional distribution is the multi-dimensional distribution. The Dirichlet distribution function is as follows:
Multiple distribution functions are as follows:
K indicates k dimension. And are both constant coefficients. They do not look at the constant coefficients. The Dirichlet function has the same form as the multiple distribution functions. Therefore, the posterior distribution
Question:
Returns the character a, and returns a (n, m) = n! /(N-m )!
The character C is given, and the combination of C (n, m) = N is required! /(M! * (N-m )!)
Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1570
AC code:
# Include Using namespace STD;Long long F (int n ){Long long S = 1;If (n = 0) return S;For (INT I = 1; I Return S;}Int main (){Char C;Int n, m, T;Cin> T;While (t --){Cin> C> N> m;If (C = 'A') cout If (C = 'C') cout }}
Hdu1570 (Application of arrangement and co
DescriptionThe numbers of offices in the new building of the Office of the IT city would have lucky numbers.Lucky number is a number, consists of digits 7 and 8 only. Find the maximum number of offices in the new building of the tax Office given that a door-plate can hold a number not Lon GER than n digits. InputThe only line of input contains one integer n (1≤ n ≤55)-the Maximum length of a number t Hat a door-plate can hold.OutputOutput one integer-the maximum number of offices, than can ha
DescriptionIT developing computer games decided to upgrade its-to-reward its employees. Now it looks the following. After a new game release users start buying it actively, and the company tracks the number of sales with precision to each Transaction. Every time when the next number of sales are not divisible by any number from 2 to Ten every developer of this game Gets a small bonus. A game designer Petya knows that's the company is just on to release a new game This was partly developed by him
First, add the following code to the first page of the blog Park's HTML:Scripttype= "Text/x-mathjax-config">MathJax.Hub.Config ({tex2jax: {inlinemath: [['$','$'], ['\\(','\\)']], Processescapes:true},tex: {equationnumbers: {autoNumber: ["AMS"], Uselabelids:true } }, "Html-css": {linebreaks: {automatic:true}, Scale: -}, SVG: {linebreaks: {automatic:true } }});Script>Scripttype= "Text/javascript"src= "Https://cdn.mathjax.org/mathjax/latest/MathJax.js?conf
the title of the automatic numbering on the basis of the first to establish a formula style,The main thing to do is the operation of the tab stop, this step is to let the formula Center, the label on the right.The bottom left-hand format, select the tab stop appears in the interface, first choose the center, and then see how you word Center is the number of characters (through the grid lines can be seen), generally 23, I set here to 23, and then select the right, I set to 46, and then OK on the
covariance matrix could be computed in such a way that the sample matrix is centered first. That is, each dimension subtracts the mean of the dimension, so that the mean value on each dimension is 0, and then the new sample matrix is directly multiplied by its transpose. Then divide (N-1) to be able. In fact, such a method is also from the previous formula channel, just understand is not very intuitive, but in the abstract formula derivation is not often used!The same gives the MATLAB code impl
Don't get it wrong. It is not described in the international standard mathematical xml, which is implemented through the support of the latest browser. I just tried to use xml + xslt and simple html for display. It's just a preliminary idea to share with you. Maybe a lot of people have made similar attempts before. It doesn't matter. I just want to talk about my thoughts.The format of mathematical formulas is diverse, such as limit and poi
dictionary derivation formulaDictionary derivation and list derivation are used in a similar way, except that the brackets should be changed to curly braces. The direct example illustrates:Example one: Capitalization key mergeMcase = {'a': 10,'b': 34,'A': 7,'Z': 3}mcase_frequency={k.lower (): Mcase.get (K.lower (), 0)+Mcase.get (K.upper (), 0) forKinchMcase.keys ()ifK.lower ()inch['a','b']}Printmcase_frequency#Output: {' A ': +, ' B ':Example two: Quick change of key and valueMcase = {'a'b': in
A recent project needs to manipulate EXCEL.The principle can be borrowed from the following blog:Http://blog.sina.com.cn/s/blog_6163bdeb0102dxcy.htmlI used the most commonly used OLE automation method, which suggested that you read the documentation carefully and provide more functionality. Then in the design encountered a problem, open Excel, exit after the prompt "whether to save the ...." Changes, Microsfot Excel recalculates the formula when you open the file that was last saved by an earli
In the CSS page layout encountered a bug, please read the following carefully, very easy to remember, do not know which man put CSS bug into jingle! Look good, remember?First, IE border if not, it should be noted that the height setting has been forgotten;Second, the floating generation has the reason, if the parent layer contains live, immediately after floating to clear, the container naturally show therein;Three or three pixel text slow move don't panic, height set to help you busy;Four, comp
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