1MWRANK(1) User Commands MWRANK(1)
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6 mwrank - determines the rank of an elliptic curve E over Q by 2-descent
7 and generating points for E(Q) modulo torsion
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10 mwrank is organized as a loop where the user enters curves one by one
11 and the program displays what it can compute about them. An elliptic
12 curve is entered by giving its Weierstrass coefficients (which may be
13 integers or rationals, either as [a1,a2,a3,a4,a6] or as a1 a2 a3 a4 a6.
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15 Here are mwrank command line options (can be in any order):
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17 -h help prints this info and quits
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19 -q quiet turns OFF banner display
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21 -v n verbosity sets verbosity to n (default=1)
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23 -o PARI/GP output turns ON extra PARI/GP short output (default is
24 OFF)
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26 -p n precision sets precision to n decimals (default=15)
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28 -b n quartic bound bound on quartic point search (default=10)
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30 -x n n aux number of aux primes used for sieving
31 (default=6)
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33 -l list turns ON listing of points (default ON unless
34 v=0)
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36 -t trace turns ON trace of quartic equivalence testing
37 (debugging only)
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39 -s selmer_only if set, computes Selmer rank only (default: not
40 set)
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42 -d skip_2nd_descent if set, skips the second descent for
43 curves with 2-torsion (default: not set)
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45 -S n sat_bd upper bound on saturation primes (default=1000,
46 -1 for automatic)
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50mwrank 2012-07-30 May 2012 MWRANK(1)