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/***//**
* Fractionserial. Java
* There is a fractional sequence: 2/1, 3/2, 5/3, 8/5, 13/8, 21/13...
* Calculate the sum of the first 20 items of the series.
* @ Author Deng Chao (codingmouse)
* @ Version 0.2
* Development/test environment: jdk1.6 + eclipse SDK 3.3.2
*/
Pub
# Include
}/* The numerator behind the score is equal to the numerator plus the denominator of the previous score, and the denominator of the subsequent score is equal to the numerator with the previous score */
There is a fractional sequence: 2/1, 3/2, 5/3, 8/5, 13/8, 21/13
to be operated every day. Next we can say that it also plays many interesting roles. Imagine that you have started a small business, and data is a very important thing in the enterprise. Whether you are selling cookies, installing windshields for cars, or other small businesses, the most important thing to do is data. If you lose data, in other words, you lose your business.
Question
There is a fractional sequence of 2/1 + 3/2 + 5/3 + 8/5 + 13/8 +... Find the sum of the first 20 items of the series.Program:
# Include
Output result: 32.660261 Press any key to continue
C language: There is a score sequence: 2/1 + 3/2 + 5/3 + 8/5 + 13/8 +... Find the sum of the first 20 items in this seriesProgram:
# Include
Output result: 32.660261 Press any key to continue
In order to omit the space and make it visible to the operator who manually fills in the paper, the volume number on the card of the materials shelf is determined to be classified and sorted, as shown in
A-3, A-4, A-5, A-8 forming A-3 ~ 5, 8, etc.
The following code uses a few auxiliary list
/// /// Similar to 1, 2, 3, 5, 7, 8, 10, 11, 12, 13, 14, 15, 16, 21, 22
/**/
/// /// The rule for a column number is as follows: 1, 1, 2, 3, 5, 8, 13, 21, and 34 calculate the number of 30th digits, which is implemented using a recursive algorithm. (C # language) /// /// ///
Public
Int
Getnumberatpos (
Int
Pos)
{ If (Pos = 0 | Pos =
Build DHCP service on Linux system server, realize two basic functions: 1, automatically assign IP address, 2, specify IP address manually.First prepare two virtual machines as the experimental object, a Linux system as a server, a windows7 system as a client, both using the same virtual NIC Vmnet1, and using only host mode.Determine if the disc status on the server is connected,Use commands to view and Mou
C language 1 day a small program 2, C language small program
Program functions:
Enter an integer to print all the prime numbers within this integer.
Program example:
# Include # Include # Include
Bool IsPrime (int x){Bool bResult = false;Int I, k;K = (int) sqrt (x );For (I = 2
A. Helpful mathstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputXenia The beginner mathematician is a third year student at elementary school. She's now learning the addition operation.The teacher have written down the sum of multiple numbers. Pupils should calculate the sum. To make the calculation easier, the sum is only contains numbers 1, 2 and 3. St
1. complete analysis of jquery small cases middot; jQuery small case analysis middot; nav. js gets the li loading hover () event under navigation, moves the cursor into the function as all ul sub-elements of the current object, and stops all running animations on the element, then load the slideDown event... synta
1
Yesterday, when I embedded a completed Silverlight 2 beta 1 control into HTML for display, everything went fine in IE, but in Firefox it was prompted that I didn't install the Silverlight 2 plug-in, however, the other Silverlight 2 beta 1 control is normal in IE and Firefox
occupies 7 MB of physical memory, with two nginx and PHP-CGI parent processes that occupy a small amount of memory, the nginx + PHP + MySQL series only occupy 47.7% of the physical memory, that is, 62m physical memory (128 M * 47.7% ≈ 62 m ).
In addition, the VPs server system itself and other programs will also use some memory, but the VPs with M memory is enough. In general, after optimization, the VPs with MB of memory runs nginx + PHP + MySQL wi
1. Complete analysis of jquery small case
· JQuery Case Study
· Nav. js
Obtain the li loading hover () event under navigation, move the cursor to all ul sub-elements of the current object in the function, stop all running animations on the element, and load the slideDown event; move the mouse out of the function to get all the ul sub-elements of the current object, stop all running animations on the element
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