# top-level rule, to compile everything.
all :  num show

# 
num : num.tex
	pdflatex num
	pdflatex num
	pdflatex num

# 
show : num.pdf
	pdflatex num

# rule for cleaning
clean : 
	rm -f *~ *.aux *.idx *.out num.pdf *.log *.bak *.lot *.brf *.toc