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URL: https://en.wikipedia.org/wiki/File:Ceiling_function.svg

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Original file (SVG file, nominally 1,000 × 1,000 pixels, file size: 16 KB)
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Summary

DescriptionCeiling function.svg

Graph of the ceiling function See Wikipedia graph-making tips.


Then I opened the resulting SVG file in Inkscape, changed the fill style for the circles (either blue or white fill), brought the plot lines to the top, and then brought the circles to the top (over the lines).

Date
Source Own work using: http://mathworld.wolfram.com/
Author Omegatron
Other versions
SVG development
InfoField
👁 Image
 The source code of this SVG is invalid due to 4 errors.
👁 Image
 This W3C-invalid plot was created with gnuplot.
👁 Image
  This plot uses embedded text that can be easily translated using a text editor.
Source code
InfoField

Gnuplot code

# Set square 1000×1000 SVG output and filename
# The font size (fsize) sets the size for the circles, too.
setterminalsvgenhancedsize10001000fname"Times"fsize36
setoutput"ceiling.svg"

# Set the text value for missing entries in the data file, so we can plot a [[w:discontinuous function|discontinuous function]]
setdatafilemissing"Skip"

# Set y axis limits so the plot doesn't go right to the edges of the graph
setyrange[-3.5:3.5]
# Set x axis limits so the first and last points are hidden
setxrange[-3.5:3.5]

# No legend needed
setnokey

# Add lightly-colored axis lines
setyzeroaxis
setxzeroaxis

# Plot as lines and also points (circles)
plot"ceiling.dat"withlines
plot"ceiling.dat"withpoints16

# Close the file (so I don't have to close gnuplot to view it)
setoutput

Data

# X Y1
 -4 -4
 Skip
 -4 -3
 -3 -3
 Skip
 -3 -2
 -2 -2
 Skip
 -2 -1
 -1 -1
 Skip
 -1 0
 0 0
 Skip
 0 1
 1 1
 Skip
 1 2
 2 2
 Skip
 2 3
 3 3

Licensing

Created by User:Omegatron using gnuplot, possibly with post-processing in the GIMP (PNG) or Inkscape (SVG)

I, the copyright holder of this work, hereby publish it under the following licenses:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic 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.
https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue
👁 GNU head
 		Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
You may select the license of your choice.

(In short, this means that you can copy and modify the image freely as long as you provide attribution; preferably in the form of a link back to this page.)

File history

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

Date/TimeThumbnailDimensionsUserComment
current00:05, 22 May 2006👁 Thumbnail for version as of 00:05, 22 May 2006
1,000 × 1,000 (16 KB)Omegatroni like blue better
02:05, 11 April 2006👁 Thumbnail for version as of 02:05, 11 April 2006
1,000 × 1,000 (15 KB)Omegatron

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