plot.png:out.txt Makefile
	echo '\
	set term png;\
	set out "$@";\
	set size ratio 1;\
	plot "$<" with points pt 5 ps 0.2 not;\
	'|gnuplot

out.txt:main.exe Makefile
	mono $< 1>/dev/null 2>$@
main.exe:main.cs corput.cs lattice.cs
	mcs $^