deletions | additions       diff --git a/When_e_1_e_2_e_3_R__.tex b/When_e_1_e_2_e_3_R__.tex  index 2c21d4b..6b32103 100644  --- a/When_e_1_e_2_e_3_R__.tex  +++ b/When_e_1_e_2_e_3_R__.tex 
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y_1^2+y_2^2+y_3^2-(t+R^2)^2=0  $$  $$  t^2 - 2 R^2  t+ y_1^2+y_2^2+y_3^2 - R^4  = 0 - R^2 \pm \frac{y_1^2+y_2^2+y_3^2}  $$