一本好的电子书籍

一本关于AUTCAD的电子书，介绍的很详细。-a book about autcad ,it is introduced in detail

开源杂志，国内较好的介绍linux的杂志，强烈推荐-Open Source magazine, the domestic good introduction linux magazine, strongly recommend

关于数据结构中串的实现，用vc实现的，包含了串的全部操作。-on the data structure to achieve the series with vc achieve, and contains all the strings of operation.

易数玄机-陈抟 很好的一本五代宋初著名异术学家的占卜电子书，-YiShuXuanji

关于编写程序的，极好的习惯，以测试为主线。-procedures for the preparation of the excellent habits, to test the main line.

SUN出品的web2.0和AJAX的介绍书籍,相当实用!-buy guys and AJAX on the books, very practical!

本文件以测试定价为复习档位那里的基础，详细描述了JAVA的相关概念和改变运算符，是关关过程控制的学习！

数字图像处理源码，很详细的介绍了VC在图像处理上的应用，不要错过好东西啊。-Digital image processing source code, it is a detailed introduction of the VC in image processing applications, do not miss something good ah.

PCX图形文件格式说明-PCX graphics file format Note

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)*