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一家石油公司计划在主管道中建设一个东向西。PIP…
某石油公司计划建造一条由东向西的主输油管道。该管道要穿过一个有 n 口油井的油田。从每口油井都要有一条输油管道沿最短路经(或南或北)与主管道相连。如果给定 n口油井的位置,即它们的 x 坐标(东西向)和 y 坐标(南北向),应如何确定主管道的最优位置,即使各油井到主管道之间的输油管道长度总和最小的位置?证明可在线性时间内确定主管道的最优位置,使得给定n口油井的位置,编程计算各油井到主管道之间的输油管道最小长度总和。
-An oil company plans to construct a east to west from the main pipeline. The pipeline to pass through an oil field n wells. Wells from each must have a pipeline along the shortest path (or South or North) connected with the competent Road. If given the location of oil wells in n, that is, their x coordinates (east-west) and y coordinates (north-south), should be how to determine the optimal position in charge of Road, even if the wells to the pipeline in charge of Road between the sum of the smallest length location? proved to be linear time in charge of Road to determine the optimal location, making a given n the location of oil wells, programmed to calculate the well-to-charge of Road between the length of the sum of the smallest oil pipeline.
- 2022-10-27 02:45:03下载
- 积分:1
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很多胖友都想自己制作属于自己的软件,或是为Palm贡献一份力量,那么就看看这本书吧《Palm OS 编程实践 》...
很多胖友都想自己制作属于自己的软件,或是为Palm贡献一份力量,那么就看看这本书吧《Palm OS 编程实践 》-胖友many want to produce their own their own software, or to contribute to a Palm, then take a look at this book
- 2022-12-08 06:20:02下载
- 积分:1
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Duda,Hart & Storks 的书《模式分类》是一本名著,这是这本书Matlab源代码和全部答案...
Duda,Hart & Storks 的书《模式分类》是一本名著,这是这本书Matlab源代码和全部答案-Duda, Hart & Storks of the book " Pattern Classification" is a masterpiece, this is the book Matlab source code and all the answers
- 2023-03-16 18:20:04下载
- 积分:1
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linux内核完全注释,一本好书!该去掉.zip扩展名就可以用了
linux内核完全注释,一本好书!该去掉.zip扩展名就可以用了-completely Notes, a good book! The removed. Zip extension can be used. .
- 2022-05-28 02:57:37下载
- 积分:1
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xml 教程 很全
xml 教程 很全-xml study
- 2022-09-06 19:15:07下载
- 积分:1
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一本关于struts的权威书籍,详细的讲解了struts的内部原理
一本关于struts的权威书籍,详细的讲解了struts的内部原理-An authoritative book on the struts, struts explained in detail the internal principles of
- 2022-11-17 14:45:03下载
- 积分:1
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接口硬件连接。中断
接口硬件连线。基于中断控制的声光报警器的设计(硬件连线)-Interface hardware to connect. Interrupt-based control of sound and light alarm design (hardware connection)
- 2022-03-01 05:28:29下载
- 积分:1
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zemax源码:
This DLL models an anamorphic aspheric surface.
This surface is...
zemax源码:
This DLL models an anamorphic aspheric surface.
This surface is essentially an even aspheric surface with different terms for
the x and y directions.
The sag is given by:
Z = ((CX*x*x)+(CY*y*y)) / (1 + sqrt(1-((1+KX)*CX*CX*x*x)-((1+KY)*CY*CY*y*y)))
+ AR*( (1 - AP)*x*x + (1 + AP)*y*y )^2
+ BR*( (1 - BP)*x*x + (1 + BP)*y*y )^3
+ CR*( (1 - CP)*x*x + (1 + CP)*y*y )^4
+ DR*( (1 - DP)*x*x + (1 + DP)*y*y )^5
Note the terms AR, BR, CR, and DR ... have units of length to the -3, -5, -7, and -9 power.
The terms AP, BP, CP, and DP are dimensionless.
The surface is rotationally symmetric only if AP = BP = CP = DP == 0 and CX = CY and KX = KY.
-ZEMAX source: This DLL models an anamorphic aspheric surface.This surface is essentially an even aspheric surface with different terms forthe x and y directions.The sag is given by: Z = ((CX* x* x)+ (CY* y* y))/(1+ sqrt (1- ((1+ KX)* CX* CX* x* x)- ((1+ KY)* CY* CY* y* y)))+ AR* ((1- AP)* x* x+ (1+ AP)*
- 2022-04-21 04:49:04下载
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E:工具软件asc10.zip
E:工具软件asc10.zip-E : tools asc10.zip
- 2022-03-12 00:05:10下载
- 积分:1
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进行PLC程序设计,上位机读取PLC的历史数据,OPC与PLC的详细配置说明
进行PLC程序设计,上位机读取PLC的历史数据,OPC与PLC的详细配置说明-For PLC programming, PLC PC to read the historical data, OPC and PLC detailed configuration instructions
- 2022-04-18 23:59:54下载
- 积分:1