deletions | additions       diff --git a/Appendix.tex b/Appendix.tex  index ed9a179..6515d54 100644  --- a/Appendix.tex  +++ b/Appendix.tex 
...
$$\Delta_{E_{n}}=E_{n}-E_{n-1}$$  $$\Delta_{E_{n}}=n(E_{a}+\delta_{n})-(n-1)(E_{a}+\delta_{n-1})$$  $$\Delta_{E_{n}}=n(E_{a}+n\frac{\lambda}{L} E_{a})-(n-1)(E_{a}+(n-1)\frac{\lambda}{L} E_{a})$$  $$\Delta_{E_{n}}=E_{a}\frac{\lambda}{L} (2n-1)+E_{a}$$