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驱动编程 The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422 standard
The SP486 and SP487 are low–power quad differential line drivers meeting RS-485 and RS-422
standards. The SP486 features a common driver enable control the SP487 provides independent
driver enable controls for each pair of drivers. Both feature tri–state outputs and wide
common–mode input range. ...
编译器/解释器 c pgm to find redundant paths in a graph.Many fault-tolerant network algorithms rely on an underlyin
c pgm to find redundant paths in a graph.Many fault-tolerant network algorithms rely on an underlying assumption that there are possibly distinct network paths between a source-destination pair. Given a directed graph as input, write a program that uses depth-first search to determine all such paths ...
其他 In some graphs, the shortest path is given by optimizing two different metrics: the sum of weights o
In some graphs, the shortest path is given by optimizing two different metrics: the sum of weights of the edges and the number of edges. For example: if two paths with equal cost exist then, the path with the least number of edges is chosen as the shortest path. Given this metric, you have find out ...
CA认证 Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2
Playfair Cipher
1.not even the large number of keys in a monoalphabetic cipher provides security
2.one approach to improving security was to encrypt multiple letters
3.the Playfair Cipher is an example
4.invented by Charles Wheatstone in 1854,but named after his friend Baron Playfair
Playfair Key M ...
Linux/Unix编程 //颜色初始化 if(!has_colors() || start_color() == ERR){ endwin() printf("Terminal does not su
//颜色初始化
if(!has_colors() || start_color() == ERR){
endwin()
printf("Terminal does not support color.\n")
exit(1)
}
init_pair(1, COLOR_GREEN, COLOR_BLACK)
init_pair(2, COLOR_RED, COLOR_BLACK)
init_pair(3, COLOR_CYAN, COLOR_BLACK)
init_pair(4, COLOR_WHITE, COLOR_BLACK) ...
VHDL/FPGA/Verilog RS_latch using vhdl, When using static gates as building blocks, the most fundamental latch is the
RS_latch using vhdl,
When using static gates as building blocks, the most fundamental latch is the simple SR latch, where S and R stand for set and reset. It can be constructed from a pair of cross-coupled NOR (Not OR) logic gates. The stored bit is present on the output marked Q.
Normally, in stor ...
加密解密 RSA ( Rivest Shamir Adleman )is crypthograph system that used to give a secret information and digit
RSA ( Rivest Shamir Adleman )is crypthograph system that used to give a secret information and digital signature . Its security based on Integer Factorization Problem (IFP). RSA uses an asymetric key. RSA was created by Rivest, Shamir, and Adleman in 1977. Every user have a pair of key, public key a ...
Windows编程 Delphi 泛型容器 TDictionary 的用法 Demo
Collection of key-value pairs. 
TDictionary represents a generic collection of key-value pairs. 
This class provides a mapping from a collection of keys to a collection of values. When you create a TDictionary object, you can specify various combinations of initial capacity, equality ope ...
接口技术 net_tcp.h
/*
*********************************************************************************************************
*                                             uC/TCP-IP V2
*       ...
论文 Bi-density twin support vector machines
In this paper we present a classifier called bi-density twin support vector machines (BDTWSVMs) for data classification. In the training stage, BDTWSVMs first compute the relative density degrees for all training points using the intra-class graph whose weights are determined by a local sc ...