Changes between Initial Version and Version 7 of Ticket #7575
 Timestamp:
 Jan 19, 2010, 10:11:48 PM (13 years ago)
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Ticket #7575

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toneeds_info

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EllipticCurve.gens: height bounds not handled well in two_descent
toSage's interface with mwrank needs serious work

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Ticket #7575 – Description
initial v7 1 The documentation for `EllipticCurve.gens` says: 2 {{{ 3 HINT: If you would like to control the height bounds used in the 4 2descent, first call the two_descent function with those height 5 bounds. However that function, while it displays a lot of output, 6 returns no values. 7 }}} 1 Ticket TODO list: 8 2 9 However, this doesn't work, because `EllipticCurve.gens` doesn't know about it: 3 * `src/qrank/mrank1.cc` needs to be patched, as John described. 10 4 11 {{{ 12 sage: x,y=var('x,y') 13 sage: E = EllipticCurve(y^2 + x*y + y == x^3  10525529*x  21714803524) 14 sage: E.two_descent(second_limit=11, verbose=False) 15 sage: E.gens() 16 *BOOM* 17 }}} 5 * Switch all uses of mwrank from the interface to the library. 18 6 19 Despite: 7 * Make sure that all options to mwrank are properly used. 20 8 21 {{{ 22 sage: A = E.mwrank_curve() 23 sage: A.gens() 24 [[1737553736529419603224344006006032245457891558644991945121564365621L, 1605018042749306385493128932071874233128412498544999275367916849231954L, 2038538889602737161869943561394015059980551394212496529475951L]] 25 }}} 9 * Make sure that all output from mwrank is available. 10 11 * ...?