Season's Greetings, 2014 help greetings % greetings Seasonal holiday fractal. % greetings(phi) generates a seasonal holiday fractal that depends % upon the parameter phi. The default...阅读更多>>

An incredible book, published in several editions from 1909 to 1933, by German mathematicians Eugene Jahnke and Fritz Emde, contains definitions and formulas for mathematical functions, hand-calculated tables of function values, and meticulous hand-drawn 2- and 3-dimensional graphs. An English edition was published by Dover in 1945....阅读更多>>

Our plots of the first eigenfunction of the L-shaped membrane have changed several times over the last fifty years....阅读更多>>

特定解决方案的方法计算了我们一直在寻求的特征值的高万博 尤文图斯度准确近似，并保证了准确性的界限。它还提供了涉及导致数学徽标的边界条件的灵活性。...阅读更多>>

部分微分方程工具箱包含用于分析两个空间维度和时间的PDE的工具。一个主要的例子之一涉及L形膜。阅读更多>>

在审查了五十年前的事务状态之后，我使用经典的有限差异方法，然后再推算，以找到Mathworks徽标的第一个特征值...。阅读更多>>

Mathworks是世界上唯一可以满足部分微分方程的公司。为什么这个方程式的区域形状像大写字母L？...阅读更多>>

这是有关有限傅立叶变换的一系列帖子中的第三个。傅立叶矩阵产生有趣的图形，并具有令人惊讶的特征值分布。...阅读更多>>

这是有关有限的傅立叶变换的三个帖子系列中的第二个。这篇文章是关于快速FFT算法本身的。递归鸿沟和征服算法在一个名为FFTTX...。阅读更多>>

We all use Fourier analysis every day without even knowing it. Cell phones, disc drives, DVDs, and JPEGs all involve fast finite Fourier transforms. This post, which describes touch-tone telephone dialing, is the first of three posts about the computation and interpretation of FFTs. The posts are adapted from chapter 8 of my book,Numerical Computing with MATLAB。...阅读更多>>