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10 0 complex exponential/trigonometric ( 2022-01-17 05:18:25 +0200 )
10 0 How to change variables in differential equation? ( 2021-08-05 23:11:26 +0200 )
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.