I have only recently started using Gnuplot (literally only for a few weeks) but combined with C it is a powerful way of creating nice images. I used this simple code in C:
printf(“plot [0:10][1:9] \”);
for(i = 0; i < 200 ; i++)
printf(“sin(x)+(%f) with filledcurve x2, \\n”, (double) i/20);
printf(“sin(x)+10 with filledcurve x2”);
Then I copied the output into Gnuplot and got the following result:
Obviously very simple but I will try to master Gnuplot and post some really cool pictures!