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| 2014-09-30 22:33:31 +0200 | asked a question | How do I compute the image of the cusp 0 on a modular elliptic curve? Using the modular parameterization we can get a q-series representation of the map from the upper half plane to the elliptic curve that sends the cusp infinity to the identity of the elliptic curve. However, plugging 0 into this q-series amounts to setting q=1 and the series does not converge. Is there a way to compute the image of 0 in E? |
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.