本文介绍了使用Python绘制ODE，等高线图的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在寻找一个Python软件包，该软件包将允许我绘制类似于以下所示的Java applet的内容:
I am looking for a Python package that will allow me to plot something similar to the Java applet seen below:
http://math.mit.edu/mathlets/mathlets/isoclines/
有人知道为此的任何ODE绘图软件包吗?我可以使用Numpy，Matplotlib从头开始编写代码，但是我想先问一下.
Does anyone know any ODE plotting packages for this? I can code something from scratch using Numpy, Matplotlib, but I wanted to ask around first.
谢谢
推荐答案
我写了这样的内容，它似乎适用于y'= y ^ 2-x
I wrote something like this, it seems to work for y'=y^2-x
from pylab import *
xmax = 4.0
xmin = -xmax
D = 20
ymax = 4.0
ymin = -ymax
x = linspace(xmin, xmax, D)
y = linspace(ymin, ymax, D)
X, Y = meshgrid(x, y)
deg = arctan(Y**2 - X)
QP = quiver(X,Y,cos(deg),sin(deg))
show()
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