Hi, i'm working on marionþton ch6 question 6.4.(adsbygoogle = window.adsbygoogle || []).push({});

"Show that the geodesic on the surface of a straight circular cylinder is a (partial) helix"

I used the example of the geodesic on a sphere in the book, but when i calculate the angle phi i get something like phi=b*z+c, where b and c are constants; this is a straight line?!

Or does it just mean that the 'speed' of phi doesn't change in time??

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# Geodesic in cylinder

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