File:Saddle Point SVG.svg
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Size of this PNG preview of this SVG file: 720 × 540 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,280 × 960 pixels | 2,560 × 1,920 pixels.
Original file (SVG file, nominally 720 × 540 pixels, file size: 865 KB)
Summary
| Description |
English: SVG version of the illustration of saddle point. |
| Date | |
| Source |
Own work |
| Author | IkamusumeFan |
| SVG development |  This plot was created with Matplotlib. |
| Source code | Python code# Author: Ika, 2013-07-26
from mpl_toolkits.mplot3d import Axes3D
from matplotlib import cm
from matplotlib.ticker import LinearLocator, FormatStrFormatter
import matplotlib.pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.gca(projection='3d')
ax.set_xlabel('x')
ax.set_ylabel('y')
# Prepare the data to plot
X = np.arange(-8, 8, 0.5)
Y = np.arange(-8, 8, 0.5)
X, Y = np.meshgrid(X, Y)
Z = X*X - Y*Y
# Plot the surface
surf = ax.plot_surface(X, Y, Z, rstride=1, cstride=1, cmap=cm.jet, linewidth=0, antialiased=False)
# Plot the saddle point
x=y=z=np.arange(-0.1,0.1,0.1)
ax.plot(x, y, z, 'r+', linewidth=1)
ax.text(-2,0,2,r'(0,0,0)',fontsize=20)
fig.colorbar(surf, shrink=0.5, aspect=5)
# Save the figure to the output SVG file
plt.savefig("Saddle_Point_SVG.svg");
|
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:44, 26 July 2013 | | 720 × 540 (865 KB) | wikimediacommons>IkamusumeFan | User created page with UploadWizard |
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