画线的算法不少，但要作到高速、简单并不容易。斜率相乘法是最简单的方法之一，但计算每个点均要花费不少时间用于乘、除法运算；下面介绍的是Bresenham s高效画线算法，对每个点的坐标计算只要加、减法就能完成。-line drawing algorithm, but a lot to be done fast, simple is not easy. The slope is the most simple multiplication is one of the ways, but each p

一个简单的计算器，可以进行加减乘除、开方、正弦运算

图像处理课件－4 图像得运算，包括：二维图像间得加，减，乘，除运算，逻辑与，或，非，异或运算-Image Processing Software -4 images in computing, including : two-dimensional images in between, plus or minus, multiplication and addition operations, logic and, or, not, XOR