Henrik Holst edited Ellipsens_ekvation_E_x_frac__.tex  almost 9 years ago

Commit id: 4e4edc6f17803c3203722a257f818f5d6f019f5f

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$$y - x = \frac{1}{2} t \nabla E(x) = t \begin{bmatrix} \frac{x_1}{e_1^2} & \frac{x_2}{e_2^2} \end{bmatrix}$$  eller ekvivalent formulerat  $$y_k = \left( 1 + \frac{t}{e_k^2} \right) x_k, \qquad k=1,2,3.$$  We can formulate this as  $$e_k^2 y_k = \left( e_k^2 + t \right) x_k, \qquad k=1,2,3$$