FindRoot[f @@ (pt0 + grad*t), {t, 0}] ] points = Join @@ Cases[ Normal@ContourPlot[f[x, y] == 0, {x, -3, 3}, {y, -3, 3}], Line[pts_] -> pts, Infinity ] refine[f, #] & /@ points 收藏分享票数12 EN Stack Overflow用户
Create WebAssign plot, or WAPlot, graphs and charts for your questions using Mathematica syntax. Use WAPlot images as conceptual illustrations, representations of functions or data, and multiple-choice answers. WAPlot images can be randomized to match yo
我找到的matlab, mathematica, python的资源都有。个人最喜欢的是,mathematica和python。个人偏见而已:一个收费软件中性价比极高(唯一一个有丰富的简体中文文档、用户群庞大、有mathematica.stackexchange.com这样强大支持性论坛的软件),一个免费开源而且文档丰富。 推荐这三种语言不光有我个人的偏好的原因,还在于它们有庞...
它在下列方面有所增强:命名输入输出、使用系统命令(shell commands)、排错(debug)能力。我们在命令行终端给 IPython 加上参数-pylab(0.12 以后的版本是--pylab)之后,就可以像 Matlab 或者 Mathematica 那样以交互的方式绘图。 pylab pylab 是 matplotlib 面向对象绘图库的一个接口。它的语法和 Matlab 十分相近。也就...
The format is plot3d(x, y, z) where x, y, and z are numeric vectors representing points. Literature 对于这个行为的研究,可以通过分析混沌数学模型,或者通过诸如递归图(英语:Recurrence plot)和庞加莱映射等分析技术。 This behavior can be studied through analysis of a chaotic mathematical model,...
How Do I Extract Coordinates from a Plot? How Can I Select Multiple Points? Zooming, Finding Start Points for FindRoot, and Selecting Pieces of Images also covered. Also available in Japanese http://library.wolfram.com/howtos/coords/index.ja.htmlSubject...
At many points, he gratuitously blames encryption as the only thing that was holding them back, and says he is hopeful for the day when no information is kept from the good guys. And of course, XORweiL and Agent Roberts fall in love....
通过R语言,用户可以生成各种类型的图表,帮助他们理解和分析数据。本文将介绍如何在已有图上添加新的图形元素,以及一些常用的函数和技巧。我们将详细讲解使用`plot`和`points`函数,同时我们也会展示一个旅行图和类图,以便更好地理解这些概念。 ## 基本图形绘制 首先,我们来看一个简单的线性散点图。假设我们有一些...
At many points, he gratuitously blames encryption as the only thing that was holding them back, and says he is hopeful for the day when no information is kept from the good guys. And of course, XORweiL and Agent Roberts fall in love....