deletions | additions       diff --git a/1_frac_lambda_2_r__.tex b/1_frac_lambda_2_r__.tex  index aabb24d..bbe681a 100644  --- a/1_frac_lambda_2_r__.tex  +++ b/1_frac_lambda_2_r__.tex 
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$$  1 \dot{r}^2  + \frac{\lambda^2}{r^2} - \frac{2M}{r} - \frac{2 M\lambda^2}{r^3} = \epsilon^2 - \dot{r}^2 1  $$