java 编写计算器的简单程序//一个较为简洁的巧妙的计算器程序, import java.io.*; import java.awt.event.*; import java.awt.*; //需要解决的问题，数学的运算都有正负号的出现，在点击等号的时候就会有冲突，应该怎样解决，经验：双精度浮点型数据类型是会像后减一位。0.7会显示成0.69999999 public class app74 { static int i=0; static int j=0; static int k=-1;
sha碰撞,MD5碰撞实现，#!/usr/local/bin/perl # It was noted that Intel IA-32 C compiler generates code which # performs ~30% *faster* on P4 CPU than original *hand-coded* # SHA1 assembler implementation. To address this problem (and # prove that humans are s
1. Copy ibfs32.dll to windows\system32 2. Copy synplctyd.lic somewhere 3. Open synplctyd.lic, and replace MAC_ADDR with one of your system's NIC's MAC address. Save. 4. Set environment variable SYNPLCTYD_LICENSE_FILE to the location of synplctyd.lic
Harris角点检测代码， function [ posr2, posc2 ] = harris(image,Thrshold ) %HARRIS Summary of this function goes here I = double(image); %% For each pixel(x,y) in the image calculate the autocorrelation matrix M %% M= [Ix2(i,j) Ixy(i,j);Ixy(i,j) Iy2(i,j)]; f
