Image:Floor function.svg
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Floor_function.svg (SVG file, nominally 1000 × 1000 pixels, file size: 16 KB)
| This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Graph of the floor function.
(My first decent-looking gnuplot-generated SVG.)
Contents |
[edit] Related images
 Floor |
 Ceiling |
 Int |
[edit] Instructions
See Wikipedia graph-making tips.
Generated in gnuplot with the following script:
# Set square 1000×1000 SVG output and filename # The font size (fsize) sets the size for the circles, too. set terminal svg enhanced size 1000 1000 fname "Times" fsize 36 set output "floor.svg" # Set the text value for missing entries in the data file, so we can plot a discontinuous function set datafile missing "Skip" # Set y axis limits so the plot doesn't go right to the edges of the graph set yrange [-3.5:3.5] # Set x axis limits so the first and last points are hidden set xrange [-3.5:3.5] # No legend needed set nokey # Add lightly-colored axis lines set yzeroaxis set xzeroaxis # Plot as lines and also points (circles) plot "floor.dat" with lines plot "floor.dat" with points 1 6 # Close the file (so I don't have to close gnuplot to view it) set output
and data file:
floor.dat
# X Y1 -3 -4 Skip -3 -3 -2 -3 Skip -2 -2 -1 -2 Skip -1 -1 0 -1 Skip 0 0 1 0 Skip 1 1 2 1 Skip 2 2 3 2 Skip 3 3 4 3
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).
[edit] License
Created by User:Omegatron using gnuplot, possibly with post-processing in the GIMP (PNG) or Inkscape (SVG)
(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.)
[edit] External links
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 00:05, 22 May 2006 | 1,000×1,000 (16 KB) | Omegatron | (i like blue better) |
| 02:27, 11 April 2006 | 1,000×1,000 (15 KB) | Omegatron | (why is it a slightly different size from the others?) | |
| 16:09, 8 April 2006 | 1,000×1,000 (15 KB) | Omegatron | ||
| 16:00, 8 April 2006 | 1,000×1,000 (15 KB) | Omegatron | ||
| 15:35, 8 April 2006 | 1,200×1,200 (16 KB) | Omegatron | (ideally the sizes could be set with relative units.... :-/) | |
| 15:31, 8 April 2006 | 1,600×1,600 (16 KB) | Omegatron | ||
| 06:51, 30 March 2006 | 1,000×1,000 (16 KB) | Omegatron |
