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模拟退火源码
- 模拟退火算法 模拟退火算法(Simulated Annealing,简称SA算法)是模拟加热熔化的金属的退火过程,来寻找全局最优解的有效方法之一。 模拟退火的基本思想和步骤如下: 设S={s1,s2,…,sn}为所有可能的状态所构成的集合, f:S—R为非负代价函数,即优化问题抽象如下: 寻找s*∈S,使得f(s*)=min f(si) 任意si∈S (1)给定一较高初始温度T,随机产生初始状态S (2)按一定方式,对当前状态作随机扰动,产生一个新的状态S’ S’=S+sign(η).δ 其中δ
422784552818
- 本设计选用第三种方案,用PMM8713三相或四相步进电机的脉冲分配器、SI-7300A两相或四相功率驱动器,组成四相步进电机功率驱动电路,以提高集成度和-The third program of this design choice, and PMM8713 or three-phase four-phase stepper motor pulse distributor, SI-7300A Two-phase or four-phase drive power to form a four-p
budengshi
- 很多不等式在展开以后形成如下的对称形式 sigma(s1^a1*s2^a2*...*sn^an)>=sigma(s1^b1*s2^b2*...*sn^bn) (当然 作为齐次不等式 a1+a2+....an=b1+b2+...bn 变量s1,s2,...sn非负) 其中sigma表示对称和(也就是说 一共n!项) 例如 sigma(x^3)=x^3y^0z^0+x^3z^0y^0+y^3x^0z^0+y^3z^0x^0+z^3x^0y^0+z^3y^0x^0=2
atmega16lc
- 本设计选用第三种方案,用PMM8713三相或四相步进电机的脉冲分配器、SI-7300A两相或四相功率驱动器,组成四相步进电机功率驱动电路,以提高集成度和-The third program of this design choice, and PMM8713 or three-phase four-phase stepper motor pulse distributor, SI-7300A Two-phase or four-phase drive power to form a four-p
Limit_form_size_set_former_display_VB_code
- 限制窗体尺寸大小设置在前显示的VB代码Limit the form size set in the former display VB code-Limit the form size set in the former display VB code
SFP-optical-transceiver-PCB-design
- 千兆SFP光信号收发卡高速电路PCB仿真设计,介绍了利用SI 仿真设计来进行高速数字电 路设计的方法。并给出了基于SI 仿真指导千兆SFP ( Small Form- Factor Pluggable Optical Transceiv er ) 光信号收发卡电路设计的实例。-Gigabit SFP optical transceiver card PCB simulation of high-speed circuit design, simulation design introduce
key-progamme
- 这是一款用51单片机控制的玩具电子琴,用到了51的定时器和键盘技术,它的汇编程序流程如下,很适合初学者学习制作。 说明:由单片机的P1.0口输出音频信号,在P1.0口接三极管以驱动喇叭,最好用两个三极管构成达林顿结构。P2口连接8个一端接地的按键作为输入,当然也需要连接8只10K的电阻至电源作为上拉电阻。P2.0~P2.7依次为Do、Re、Mi、Fa、So、La、Si、Do(高)音。 -This is a microprocessor controlled toy with 51 ke
si-ze-yun-suan
- 用C语言实现将字符串形式的运算转换为四则运算-Using C language to convert the string in the form of arithmetic operations
form-cut-shape
- 把Form切割成你要的形狀,不再是死板板的長方形囉-Form cut into the shape you want, is no longer a rectangle of Si Banban Hello
Triangular-lattice-with-air-holes-in-Si-or-GaAs-m
- Here, for convenience, the vector in 2D is represented by a complex number: the real part represents the x-component and the imaginary part represents the y-component. How to get the Fourier transform is the key of this program. Here I used the a
form-cut-shape
- 把Form切割成你要的形狀,不再是死板板的長方形囉-Form cut into the shape you want, is no longer a rectangle of Si Banban Hello