When I graduated from Physics department, I had no idea about programming. After I was accepted to Master program in Biomedical Engineering, I realized that I should have learned Matlab for course projects and thesis.
My first code just contained about 60-70 lines and it took me 1.5 months to complete! It was taking two types of images of the cells and calculating the direction of the motion for each cell on the images.
After this project, I became very curious about programming. I improved my Matlab knowledge and I began to study c++ and GUI desing.