starting with arithmetic elements
add implicite
definied month and stuff
test variables and tought about the way the arithmethic should work.
glued almost everything in the arithmetic element
getters for the elements
don't know just commited
keep less and bigger files
commentary and format
sugar
docu
step by step
step by step
now it can't compile because i defined something stupid
superb test must be adjusted but thats ok
ok it compiles lets see what happens when i'm writing tests :D