八皇后问题是一个古老而著名的问题。这个问题是十九世纪著名的数学家高斯1850年提出：在8X8格的国际象棋上摆放八个皇后，使其不能互相攻击，即任意两个皇后都不能处于同一行、同一列或同一斜线上，问有多少种摆法。高斯认为有76种方案。1854年在柏林的象棋杂志上不同的作者发表了40种不同的解，后来有人用图论的方法解出92种结果。例如: 0 0 0 0 0 0 0

The xgraph program draws a graph on an X display given data read from either data fi les or from standard input if no fi les are specifi ed. It can display up to 64 independent data sets using diff erent colors and/or line sty

Altitude Graph / Line Graph Control. Control is fully functional, but there are several enhancements that would make it better: same old story, couldn t find altitude/graph control so I hacked one together<br><br> i am working on

matlab初学者对于绘图的基本程序，比如画饼图，线图，向量图，瀑布图等基本绘图基础程序。-matlab for beginners a basic drawing program, such as yourselves chart, line graph, vector, waterfall and other basic drawing foundation program.