deletions | additions       diff --git a/Method.md b/Method.md  index e582a7e..aa9a023 100644  --- a/Method.md  +++ b/Method.md 
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\end {equation}  \begin {equation}  p=2*(t_apo-t_peri) p=2(t_apo-t_peri)  \end {equation}  \begin {equation}  e=(r_apo-r_peri)/(r_apo+r_peri) e=\frac{r_apo-r_peri}  {r_apo+r_peri}  \end {equation}