polygon area, and the result is exactly one decimal point after the decimal.The output for each instance takes up one row.Sample Input3 0 0 1 0 0 14 1 0 0 1-1 0 0-10Sample Output0.52.0Topic Analysis:Calculates the area of a freeform polygon. Tool: Vector fork multiplication. The Vector fork is twice times the direction area of the triangle. Therefore, you can select any point, such as the origin and the two endpoints of each edge to form a triangle,
To give you illustrator software users to detailed analysis to share the design of freeform bending pencil effect of the tutorial.
Tutorial Sharing:
Okay, the above information is small make up to you illustrator of this software users of the detailed design of a flexible pencil to draw the effect of the full content of the tutor
Formula:In practice, it is important to note, for example, that the coordinate information of n points is saved from a[0]-a[n-1], and you must not forget the a[n]=a[0] before summing up the sum, and then operate from 1 to N, for example:1 DoubleGetarea () {2 Doublesum =0.0;3A[n] = a[0];4 for(inti =1; i){5Sum + = a[i].x*a[i-1].y-a[i-1].x*a[i].y;6 }7 returnsum/2.0;8}This way, you will not miss the calculation of the last point with the first generated vector.Calculate the area of
How does a PDF file draw a freeform callout?
1, we can search the relevant PDF editor software in Baidu to achieve the corresponding PDF file editing. The effect of opening a PDF file as shown in the figure.
2, find the toolbar in the PDF file Editor, find the Annotation tool in the toolbar, click on the Annotation tool, and select Add Polygon tool in the Drop-down tool menu.
3,
"Data Recovery failure description"Company financial personnel for data maintenance, misoperation, in the financial software to initialize the data, because recently did not do backup, it caused a lot of financial documents lost.Because the financial data is very important, the customer is anxious to get back.The data Recovery Analysis "Engineer detection, in SQL Server database Enterprise Manager, discover what the
Data
PB in the Data Window column border style only a few, if you want the border color is colored there is no way.
In fact, you can use dynamic create rectangle, change the border color of the Data window column, mainly applicable to free format
PB in the Data Window column border style only a few, if you want the border color is colored there is no way. In fact, you can use dynamic create rectangle, change the border color of the Data window column, applicable to free format (do not need
Software can be roughly divided into: Free Software and non-free software
Types of Free Software and non-free software.The following are some terms that are frequently mentioned when discussing free software. They explain which types overlap with others or are part of o
Tags: is system dependent upgrade ref Adobe Inux Director dir
Most of our Linux system is a Linux manufacturer's system, so these vendors can compile some software to provide users to download, the user after downloading can be installed directly, thus eliminating the compilation of the source code and the process of various problems. At this point we can use the appropriate software manager to ope
Software Engineering-software testing, Software Engineering Software Testing
After the system is complete, it is time to test the system. This must have been the first system of acceptance. We are confident that the system will be accepted by the master. Once it comes to the master, nothing will happen, in addition, so
It takes more than two years to develop programs!
Make a small summary!
Status Quo,
At present, many software companies in China are still working in small workshops!
After receiving a project, let's discuss how to do it. After the boss decides to make a decision, let's split our heads!
As a result, a project started, and everyone was busy in the early stage!
Everyone has their own jobs (some companies are unevenly allocated. If there are idle people,
In the past, I have read many articles about the top ten essential tools for developing common professional software such as. NET and. Net programmers. Today, I don't want to introduce these professional software. I want to introduce some auxiliary software that is often used during development to help us complete better development.
I recommend commonly used a
The structure diagram proposed by Yourdon is another powerful tool for software structure design. A structure diagram is similar to a hierarchy diagram, and is also a graphical tool for describing software structures, in which a box represents a module with the name or main function of the module; the arrow (or line) between the boxes represents the calling relationship of the module. Because the formula is
period, the CS is not, other industries worse. When the economy improves, CS lead. There's a representative billionaire who says, "Software will swallow the world." human beings just develop software, let the software command the machine, all other working bots will help you. You are the mouth cannon, these rich people use their own huge amount of money
software is almost transparent-it supports your work by visualizing your thoughts around a central idea with linked off-shooting concepts or ideas. the key difference between mind maps and visual outlines is that the process of creating mind maps is an idea capturing process where the software facilitates seamless and transparent entry so that the user is not held up by
During software development, I often encounter this problem: "When a software function is implemented, the business personnel say one set, and the software personnel say one set ". Here, we can find out a pair of friends who are both conflicting and dependent on business and software. What the business personnel and
It took me two nights to finish reading "software technology", which should be a non-technical computer book that I once again applauded after "programmer's Cultivation". Although it was just a waste of time, however, the problem solved my doubts. Software Engineering emphasizes the process of software development, while soft
As an industry, application software development has been developing for more than 30 years. However, it may be complicated or invisible to software, but it is still in the original production mode of manual workshop, development relies on a large amount of manpower, making it difficult to ensure the quality and high cost of use and O M.
There are many reasons for this situation, but I think the most fun
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.