File:Polynomialdeg3.svg

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Original file(SVG file, nominally 400 × 400 pixels, file size: 737 bytes)

This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.

Summary

Description

Polynomial of degree 3 with roots at 2, -1, and -4:

Date
Source Polynomialdeg3.png
Author N.Mori
Permission
(Reusing this file)
Public domain This work has been released into the public domain by its author, N.Mori. This applies worldwide.
In some countries this may not be legally possible; if so:
N.Mori grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
SVG development
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The SVG code is valid.
 
This plot was created with Matplotlib.
Source code
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Python code

Source code
# Author: Ika, 2013-07-24
from pylab import *
import pylab as pl
import numpy as np

# Create a figure of size 8x6 points, 80 dots per inch
pl.figure(figsize=(8,8), dpi=80)

# Create a plot of the cubic function y=(x+4)(x+1)(x-2)/4
x = np.linspace(-5.0,4.0,256, endpoint=True)
y = (x+4)*(x+1)*(x-2)/4
pl.plot(x,y,color="magenta", linewidth=3.0, linestyle="-")

# Set labels
pl.xlim(-5,4)
pl.ylim(-4,7)

# Move the spines
ax = pl.gca()
ax.set_xlabel('x')
ax.set_ylabel('y')
ax.text(-5, 3, r'$y=\frac{1}{4}(x+4)(x+1)(x-2)$', fontsize=20)

# Set up the grid
ax.spines['right'].set_color('none')
ax.spines['top'].set_color('none')
ax.xaxis.set_ticks_position('bottom')
ax.spines['bottom'].set_position(('data',0))
ax.yaxis.set_ticks_position('left')
ax.spines['left'].set_position(('data',0))
ax.grid(color="grey",linestyle='--',linewidth=1)

# Save the figure to the output SVG file
plt.savefig("Cubic_Function_SVG.svg");

Captions

Mathematics

Items portrayed in this file

depicts

6 January 2007

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current10:33, 2 January 2015Thumbnail for version as of 10:33, 2 January 2015400 × 400 (737 bytes)KrishnavedalaReverted to version as of 13:02, 30 August 2008: Cleaner rendering. text and graph not clear in the newly uploaded version.

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