tests are ok but something crashes core
core fixed. explicit refactored
further refactoring
extracting calculatePrice at time zerp
refactoring implict method
hujowe testy nie dzoalaja
refactoring crank nicholosn seees taht tesst pass
removing a,b,c A,B,C
remaming vectors
rremoving refactored metods
rremoving refactored metods
compiler warnings
before main refactoring
generating 3d graphs