deletions | additions       diff --git a/frac_x_1_2_e_1_2__.tex b/frac_x_1_2_e_1_2__.tex  index b05f6da..6a36b84 100644  --- a/frac_x_1_2_e_1_2__.tex  +++ b/frac_x_1_2_e_1_2__.tex 
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Ellipsens ekvation:  $$\frac{x_1^2}{e_1^2} + \frac{x_2^2}{e_2^2} - 1 = 0$$