说明:欧拉前差公式通用程序
欧拉前差公式的算法,精度不是很高,误差相对比较大- In front of Euler in front of difference formula general
routine Euler the difference formula algorithm, the precision is not
very high, the error relative quite is big <石头> 在 2008-10-13 上传
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说明:一个画布,的例子.Canvas,画布为应用程序提供了绘图功能.-a canvas, example. Canvas, the canvas for the application of graphics features. <易杜平> 在 2008-10-13 上传
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说明:source code to enumerate all possible words based on a phone number.
words are based on the phone s caracters. for example, 2 has abc while 3 has def. <6270> 在 2008-10-13 上传
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