A new function for extrapolation for case 1 is introduced. Ready for testing.
The new function for case 1 is updated for low values of extrapolated dose.
Tests are done. Number of iterations for lead is reduced from 19 to 9.
Created a separate folder for codes.
Rename working directory to dantsys directory
Move previous implementation into a folder named 'old', and start from scratch for OOP
New object oriented code implemented. Needs testing by dantsys.
OOP design passed tests. Implementation is successful.