This little command line tool calculates the lyapunov-indices from a function input
and puts out an image in plain ppm format.
It simmulates behavior of a dynamic system to get fractal
images like this:
make
sh test.sh
./lyapunov
to see order of input parameters.
On linux you can use image converting tools like netpbm
aptitude install netpbm
and little shell script to pipe output throught ppmtojpeg (or other format convertor):
cat <<EOF | ./lyapunov -p | ppmtojpeg > ${0%.*}.jpg
2.5*sin(x+a)^2+2
0-i*200
0
i*200
400
300
-1
1
-1
1
0
10
100
EOF
- symbolic differentation for equations like
f(x) = a^g(x)