File:Max paraboloid.svg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file(SVG file, nominally 700 × 560 pixels, file size: 263 KB)


English: SVG version for MaximumParaboloid.png.
Source Own work
Author IkamusumeFan
Other versions
SVG development
Gnuplot val.svg
This plot was created with Gnuplot.

Gnuplot code

# Date: 2015-08-03
# Please use or revise this code without any copyright concern. Thanks.

set term svg size 700,560 enhanced font 'Times,12'
set output 'max_paraboloid.svg'

set multiplot

set xlabel "x"
set ylabel "y"
set zlabel "z"
set xrange [-3.0:3.0]
set yrange [-3.0:3.0]
set zrange [-15.0:5.0]
unset colorbox
set view 60,15
set style fill solid 0.30 border

set cntrparam levels auto 20
set contour base
set isosamples 20,20
set samples 20,20
set pm3d
set hidd
unset key
set ticslevel 0

# Draw the surface of f(x,y) = 4-(x*x+y*y)
set palette defined (-15 "navy", 4 "cyan")
splot 4-(x*x+y*y)

# One label at the maxima.
set label 1 "{/=26 (0,0,4)}" at 0, 0, 6

# Two points.
set pointsize 1
unset pm3d
unset contour
splot 'twopts.txt' w p pt 7 lc "blue"
# Prepare a text file 'twopts.txt' as follows (no #s):
# 0 0 4
# 0 0 -15

unset multiplot
set term windows
set output
Translate   This SVG file uses embedded text that can be easily translated.


I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons

attribution share alike

This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International 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 alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

File history

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

current09:12, 3 August 2015Thumbnail for version as of 09:12, 3 August 2015700 × 560 (263 KB)IkamusumeFan (talk | contribs)User created page with UploadWizard
  • You cannot overwrite this file.

The following 3 pages uses this file:

File usage on other wikis