Using gnuplot to plot 3D graphs…
Tuesday, October 6th, 2009…with a little help from awk…
For instance the following awk took the list of the 1st 1000 prime numbers and added a column for the difference between each of the prime numbers:
“awk ‘{ p = $1; getline; p = $1 – p; print NR” “p” “$1 }’ plist.txt > p8.txt”
Here’s the gnuplot file:
set dgrid3d 20,20
set [...]
