Found a total of 2663 related content
Let the function fx vector a vector b vector c where vector a
Article Introduction:Let the function fx vector a vector b vector c where the vector asinx let the vector d(h,k) so x'=x-h;y'=y-kx=x'-h;y=y'-k and then put the above formula into The original F(x) yields y'-h=2+√2sin(2x-2h-3π/4). Now we see the condition of "making the image obtained after translation centrally symmetrical about the origin of the coordinates" in the question. That is to say, when x =0, the equation after the second translation g(0)=0, so at this time -2h-3π/4=kπ h=3π/8-kπ/2, and then we get d(3π/8-kπ/2, -2) The key to answering this question is to set up the vector x'=x-h;y'=y-kx=x'-h;y=y'-k according to the translation method
2024-01-20comment 0430
ios逆向和安卓逆向
Article Introduction:iOS逆向和安卓逆向均为非授权分析和修改移动应用程序的过程, 但它们在平台架构、打包格式和保护机制上存在差异。iOS 逆向比安卓逆向更具挑战性,因为苹果对iOS 生态系统有严格控制。逆向用途包括安全分析、错误排除、功能修改和恶意软件分析。常用工具包括:iOS(IDA Pro、Ghidra、Hopper);安卓(Smali、Baksmali、jadx)。逆向时需注意许可协议、应用程序稳定性和信息泄露风险。
2024-08-15comment253
Is react one-way data flow or two-way?
Article Introduction:React is a one-way data flow, not two-way; one-way data flow means that after the data is changed on a node, it will only affect other nodes in one direction, while two-way binding refers to the relationship between the data model and the view Binding will affect other nodes in different directions. The performance in React is that data is mainly passed from parent nodes to child nodes through props, so it is a one-way data flow.
2022-06-28comment 02288
Forward proxy and reverse proxy
Article Introduction:A forward proxy is a server located between the client and the origin server. The client sends a request to the proxy and specifies the target (original server). The proxy then forwards the request to the origin server and returns the obtained content to the client.
2020-06-12comment 02684
How to set the computer to landscape or portrait
Article Introduction:How to set the computer to landscape or portrait mode: 1. Click the "Start" button to open the Control Panel; 2. Enter the "Appearance and Personalization" option and find the "Display" setting; 3. Click the "Adjust Screen Resolution" option and find " Orientation" option, just set the screen display direction as needed.
2021-01-08comment 035118
Word sets the first page vertically and the second page horizontally
Article Introduction:The way to set the first page vertically and the second page horizontally in Word is: 1. First open the Word program, click the [Page Layout] tab, and set the [Paper Orientation] to horizontal; 2. Then position the cursor to the end of the first page. Before, open the Page Setup dialog box, set the paper orientation to portrait, and select [After insertion point].
2020-01-15comment 070853
How to change text from horizontal to vertical in wps
Article Introduction:The method for wps to change text from horizontal to vertical is: 1. Click the [wps text] option in the upper left corner; 2. Click the [Format] and [Text Direction] options in the pop-up option list; 3. In the text direction Just choose vertical text.
2020-06-11comment 014682
Is C++ object-oriented or process-oriented?
Article Introduction:C++ is object-oriented. Object-oriented is relative to process-oriented. The object-oriented method is to organize related data and methods into a whole, to model the system from a higher level, and to be closer to the natural operating mode of things.
2020-07-10comment 018003
How to change a single page from portrait to landscape orientation
Article Introduction:How to change a single page from portrait to landscape: 1. In the separator tool under the page layout toolbar above the document, click "Next Page Section Break"; 2. Position the cursor to the first section of the next page in front of the words; 3. Click "Page Layout->Paper Orientation->Landscape".
2023-03-14comment 017728
Is Golang object-oriented or process-oriented?
Article Introduction:Golang can be said to be neither, because Golang does not have an obvious tendency, but prefers to let programmers consider how to use it. Perhaps its characteristic is flexibility, and programmers can use it to implement object-oriented, but It does not natively support object-oriented semantics.
2020-06-10comment 05481
How to set the direction of 3D rotation in css3
Article Introduction:Method: 1. Use the "transform: rotateX(angle);" style to set the element to rotate 3D along the X-axis direction; 2. Use the "transform: rotateY(angle);" style to set the element to rotate 3D along the Y-axis direction; 3. Use rotate3d () method sets the element to rotate 3D in any direction.
2022-03-25comment 02291
向日葵的桌面控制双向的吗
Article Introduction:是的,向日葵的桌面控制是双向的,远程用户对远端计算机拥有完全控制权,而远端计算机可以向远程用户发送输入信息,提供实时了解。这种双向控制适用于远程协助、远程办公或访问特定文件和应用程序。
2024-07-10comment229
HTTP reverse proxy attack in Nginx reverse proxy
Article Introduction:HTTP reverse proxy attack in Nginx reverse proxy HTTP reverse proxy attack refers to the behavior of attackers using the backend server that has been connected by the reverse proxy server to carry out attacks. In Nginx reverse proxy, attackers can use HTTP reverse proxy to carry out network attacks, including but not limited to denial of service attacks, identity forgery, data tampering, and even data leakage. Nginx is a widely used HTTP/HTTPS reverse proxy server software. Its reverse proxy capability can help enterprises
2023-06-10comment 0995
How to use forward/reverse proxy in PHP
Article Introduction:As the Internet continues to develop, websites with a large number of visits often need to consider how to share server pressure and improve website access speed. At this time, forward and reverse proxies can play an important role. This article will explore how to use forward/reverse proxy in PHP. 1. Forward proxy Forward proxy means that the client cannot directly access the target server, but needs to forward the request through the proxy server to achieve access. Common proxy servers include Squid, CCProxy, etc. To use forward proxy in PHP we can use cU
2023-06-11comment 01255
Is Python object-oriented or process-oriented?
Article Introduction:Python is object-oriented. From the beginning of its design, the Python language was positioned as an object-oriented programming language. "Everything in Python is an object" is the perfect interpretation of the Python programming language. Classes and objects are important features of Python. Compared with other object-oriented languages, Python can easily create a class and object. At the same time, Python also supports the three major features of object-oriented: encapsulation, inheritance and polymorphism.
2023-01-05comment 06409
Apple's new patent for foldable iPhone is approved, exploring inward/outward bidirectional folding
Article Introduction:Thanks to netizen Wu Yanzu from South China for submitting the clue! According to news on May 7, according to a list recently published by the United States Trademark and Patent Office (USPTO), Apple has obtained a new patent for a folding screen iPhone. The biggest highlight is the unique hinge design, which can realize inward and outward folding. Folds both ways. At present, mainstream folding screen mobile phones can only achieve one-way folding inward or outward, but Apple has explored a two-way folding method in this patent. The relevant pictures are attached as follows: In Figure 2, multiple #40 hinges are used to connect, They are then coupled to each other in rotational motion, allowing the first and second portions of housing #12 to extend in series, although judging from the patent drawings the overall amount of rotation of adjacent hinge links may be limited. The gear-shaped hinge design is shown in Figure 5.
2024-05-07comment 0374
How to set the background gradient in two directions in css
Article Introduction:In CSS, you can use the "background-image" attribute and the "linear-gradient()" function to set the background gradient in two directions. The syntax is "element {background-image:linear-gradient(direction, color 1, color 2, Color 3}".
2021-12-08comment 04028
How to modify WPS text direction_How to modify WPS text direction
Article Introduction:1. As shown in the figure, we want the fonts in the document to be displayed from horizontal to vertical directions. 2. First, we select all the text content that needs to change the text direction. 3. Click [Page Layout] in the toolbar. 4. Select [Text Direction] in the [Page Layout] menu. 5. In the [Text Direction] drop-down menu, the [Horizontal Direction] display is currently selected. 6. To change it to vertical direction, we select [Vertical direction from right to left] or [Vertical direction from left to right] in the [Text direction] drop-down menu. They are both vertical direction settings, but the starting direction is different. 7. As shown in the figure, select [Vertical direction from right to left], and you can see that the text content starts to display from the right. 8. If you select [Vertical direction from left to right], the text content will start vertically from the left.
2024-03-27comment 0701
电脑电源风扇朝向标签向内吗?
Article Introduction:电脑电源风扇朝向标签向内吗?电脑电源风扇是向外排风的,主要是排除机箱内体的热量,这样达到通风散热的功效,所以一般电源风扇都是抽风的上置电源塔式风扇的正确朝向?塔式cpu风扇方向 1、根据一般塔式的散热器设计,只会在一侧设计有风扇,而根据机箱的风道设计,我们应该讲塔式散热器风扇朝向内存一侧; 2、塔式散热器的风道设计如下,温度较低的空气经由散热风扇的带动,从右向左穿过鳍片带走上面的热量,空气温度升高后排出;温度较高的空气再经由机箱背部的风扇排出机箱外,这样完成散热的流程。组装电脑电源寿命多久?
2024-05-23comment 0233