Michael Sazonov
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Next privilege 250 Rep.
 Sep24 awarded Autobiographer Jul31 accepted Variable Substitution Jul4 comment Variable Substitution I'm sorry for not being clear enough. The direction is left-to-right and the goal is to convert the left side to polar coordinates. Jul4 revised Variable Substitution added 2 characters in body Jul4 asked Variable Substitution May21 comment Solving ODE with substitution Thank you very much! That is it. I spent about 3 hours trying to get what is wrong, solving again and again. I didn't notice, the asked solution may be implicit. Anyway, I am glad to know I was right. Thank you very much again! May21 accepted Solving ODE with substitution May21 asked Solving ODE with substitution Apr23 awarded Scholar Apr23 accepted Finding a geodesic on a plane using polar coordinates Apr23 comment Finding a geodesic on a plane using polar coordinates Thank you very much. Could you please explain, how do I make this conversion? Or maybe you could point at some good material? Apr23 asked Finding a geodesic on a plane using polar coordinates Apr23 comment Solving geodesic problems with Euler-Lagrange equation @copper.hat The geodesic lies on the same plane as earth center, but the latitude slices the sphere parallel to equator. Logically, it is clear that the distance is maximal at $\frac{\alpha}{2}$, but it needs to be proved. If I'm not that clear - you could check out the link in the post. There's the full explanation. Apr23 awarded Supporter Apr23 comment Solving geodesic problems with Euler-Lagrange equation @copper.hat Yes. But the question is what is the maximal distance between geodesic and latitude lines. Apr23 comment Solving geodesic problems with Euler-Lagrange equation @AlexanderNikolasGruber I had edited the post. Apr23 awarded Editor Apr23 revised Solving geodesic problems with Euler-Lagrange equation added 267 characters in body Apr23 awarded Student Apr23 asked Solving geodesic problems with Euler-Lagrange equation