{64} Active Bugs (by component) (1537 matches)

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algebra (53 matches)

Ticket Status Created Lasmod Summary Owner
#14117 needs_review 02/14/13 34 days Jordan normal form not computed for nilpotent matrix over rational function field / polynomials cannot be factored over rational function field AlexGhitza
#14548 new 05/07/13 42 days coefficients method for polynomials and power series AlexGhitza
#10608 needs_review 01/12/11 63 days Generating polynomial rings over matrices hangs was
#13642 needs_review 10/22/12 76 days Modular exponentiation of polynomials AlexGhitza
#13788 needs_review 12/02/12 90 days FiniteSetMaps Map Comparison tbd
#8972 needs_work 05/15/10 97 days Inversion and fraction fields for power series rings
#13345 needs_review 08/06/12 106 days Test if the assumptions made by quotient rings are fulfilled AlexGhitza
#11506 new 06/16/11 129 days Fix the infinity ring. AlexGhitza
#11892 new 10/03/11 142 days Extend singular_function to non-commutative polynomial rings by refactoring of plural AlexGhitza
#13435 new 09/06/12 143 days Cartesian Product method for Sets Chris Berg
#13999 new 01/23/13 146 days Ideal membership for univariate polynomial AlexGhitza
#13781 new 11/30/12 200 days Doctests in rings/polynomial/polynomial_modn_dense_ntl.pyx test the wrong implementation AlexGhitza
#13360 needs_review 08/11/12 310 days Should not allow coercion from polynomials to symbolic ring AlexGhitza
#13326 new 08/02/12 321 days Bug in comparisons of infinite values AlexGhitza
#8588 new 03/23/10 379 days list(SL(2,2)) is inconsistent with SL(2,2).list() AlexGhitza
#12129 new 12/08/11 404 days MPolynomial_libsingular.is_squarefree fails with linear factors AlexGhitza
#12871 new 04/23/12 421 days Conversion for RR[x][y] stricter than for QQ[x][y] AlexGhitza
#12783 new 03/29/12 447 days stopgap for 3979 AlexGhitza
#12745 new 03/25/12 450 days Coercion problem with Algebraic Real Field AlexGhitza
#9466 new 07/09/10 497 days square root with all=True should not return ValueError but empty list AlexGhitza
#4621 needs_info 11/26/08 549 days '2' not in QQbar -- canonical embedding of subfields tbd
#5075 new 01/23/09 688 days Polynomials over inexact rings should not truncate inexact leading zeroes roed
#11543 new 06/24/11 725 days Hashing algebraic numbers takes far too long AlexGhitza
#11537 new 06/23/11 727 days units in polynomial rings with prime power characteristic AlexGhitza
#11228 new 04/20/11 790 days integer_rational_power problems AlexGhitza
#11135 new 04/06/11 805 days Crashes when constructing algebraic numbers using Matrix.eigenvectors AlexGhitza
#10978 new 03/21/11 820 days Resultant for polynomials over RDF and CDF not implemented AlexGhitza
#9085 new 05/29/10 883 days random_element fails for a cartesian product of fields AlexGhitza
#10254 new 11/12/10 897 days elimination_ideal returns an ideal of the original ring AlexGhitza
#10147 new 10/20/10 972 days Inconsistent behaviour of p.roots(ring=CC) for p(x) in QQ['y']['x'] (incl. crashing) AlexGhitza
#9929 new 09/17/10 989 days polynomial ring over pAdics doesn't respect the sparse argument AlexGhitza
#4039 new 09/02/08 1004 days choose one name for partial fraction decompositions tbd
#9548 new 07/19/10 1066 days Sage does not support infinities with complex direction AlexGhitza
#9429 needs_work 07/05/10 1070 days Undesirable behaviour when deriving from QuotientRingElement AlexGhitza
#9503 new 07/15/10 1070 days FreeModule_submodule_with_basis_pid calls wrong constructor AlexGhitza
#9155 new 06/05/10 1108 days G.list() can be modified AlexGhitza
#8590 new 03/23/10 1184 days `A` still using old coercion framework AlexGhitza
#8578 new 03/22/10 1185 days method int_repr only works for small finite fields AlexGhitza
#8510 new 03/12/10 1195 days conjugacy_class(es)_representatives AlexGhitza
#8426 new 03/02/10 1204 days polynomial * constant does not work if constant is a numpy type AlexGhitza
#7253 new 10/19/09 1338 days inefficient polynomial powering for positive characteristic tbd
#5544 new 03/16/09 1439 days multipolynomial __call__ not consistent tbd
#5547 new 03/17/09 1555 days Restructure Ideal_generic in rings/ideal.py so that it doesn't derive from MonoidElement, since multiplying ideals doesn't work in a noncommutative ring (the ring changes) tbd
#8389 needs_info 02/27/10 66 days Sage eats all memory trying to evaluate MatrixSpace(QQ, 2)['x'] AlexGhitza
#13940 new 01/10/13 113 days Calling ntl.zz_p(x,0) crashes sage AlexGhitza
#13041 new 05/27/12 357 days Cannot convert elements of cyclotomic fields to algebraic numbers AlexGhitza
#8550 new 03/16/10 1000 days Infinite matrix groups over QQ fail for is_finite() AlexGhitza
#9787 new 08/23/10 1031 days lagrange_polynomial(algorithm='divided_difference') fails over finite fields AlexGhitza
#6941 needs_work 09/15/09 1118 days GCD, XGCD for polynomial rings with templating tbd
#8596 new 03/24/10 1183 days Add more doctests for addition tables of additive magmas AlexGhitza
#7730 new 12/17/09 1262 days hessenberg_form hangs (or is *very* slow) spancratz
#7829 new 01/02/10 1263 days implement hex for real numbers AlexGhitza
#11889 new 10/03/11 625 days Power series exp fails uninformatively when base ring has nonzero characteristic AlexGhitza

algebraic geometry (10 matches)

Ticket Status Created Lasmod Summary Owner
#12188 new 12/18/11 266 days Bug in is_smooth for curves over CC AlexGhitza
#11394 new 05/27/11 387 days Scheme.is_projective() should use mathematical definition AlexGhitza
#7946 new 01/16/10 485 days Spec(...) does not specify its category AlexGhitza
#10949 new 03/16/11 825 days "check=True" argument in Spec doesn't work. AlexGhitza
#10732 new 02/02/11 867 days computing support of sum of two divisors doesn't work due to careless error AlexGhitza
#10342 new 11/26/10 936 days Divisor groups and cohomology rings should not make uniqueness decisions AlexGhitza
#8197 new 02/05/10 1229 days Documenting check=True/False parameters AlexGhitza
#7954 needs_work 01/16/10 1249 days Defining affine curves in 3D space AlexGhitza
#8530 new 03/13/10 262 days affine patches of projective curves should be affine curves AlexGhitza
#12734 new 03/23/12 262 days inconsistency in points of schemes AlexGhitza

algebraic topology (1 match)

Ticket Status Created Lasmod Summary Owner
#12607 new 02/28/12 475 days ChainComplex reports zero homology groups (depending on ChomP) jhpalmieri

basic arithmetic (36 matches)

Ticket Status Created Lasmod Summary Owner
#11771 needs_review 09/01/11 4 days sage crashes on some degenerate flint xgcd's AlexGhitza
#9129 new 06/03/10 362 days sqrt memory leaks AlexGhitza
#12198 new 12/20/11 404 days is_squarefree() over multivariate rings does not work AlexGhitza
#14702 needs_review 06/07/13 4 days Sage crashes when `RealNumber` called with a base outside of [2, 62] AlexGhitza
#11740 new 08/24/11 5 days reading integers from a file takes quadratic time AlexGhitza
#9540 new 07/18/10 40 days Testing whether a Gaussian integer is in ZZ is extremely slow AlexGhitza
#14326 new 03/21/13 43 days function gives symbolic output for numeric input AlexGhitza
#12521 new 02/16/12 64 days evaluate log gamma for complex input AlexGhitza
#10255 needs_review 11/12/10 107 days Correct karatsuba multiplication of univariate polynomials for different degree polynomials AlexGhitza
#807 new 10/03/07 112 days construction of function fields somebody
#14088 new 02/09/13 129 days Comparison of python and sage complex numbers tscrim
#12179 needs_work 12/18/11 135 days Binomial of integer (mod n) returns integer AlexGhitza
#13386 needs_info 08/21/12 146 days comparison of Sage integer with Numpy integer vdelecroix
#11628 new 07/26/11 162 days GF() arithmetic slower than IntegerModRing() AlexGhitza
#2567 needs_work 03/17/08 163 days import MPFR_PREC_MAX from mpfr.h instead of hard coding it to the 32 bit limit somebody
#13559 new 10/02/12 245 days fast_float yields infinity when Python does, but should handle bigger numbers AlexGhitza
#9677 needs_work 08/03/10 335 days Sage Sets don't implement genuine comparison AlexGhitza
#12121 new 12/06/11 362 days floor/ceil can be very slow at integral values AlexGhitza
#12683 new 03/17/12 405 days Inappropriate comparison of method AlexGhitza
#9401 new 07/01/10 520 days pari(n).isprime(1) does not give the primality certificate to the user AlexGhitza
#8857 new 05/03/10 527 days lcm over QQ[x] broken AlexGhitza
#12217 new 12/21/11 545 days Finite field polynomials allow division by zero AlexGhitza
#6132 needs_work 05/26/09 547 days [with patch, needs work] cmp for number field elements
#12160 new 12/15/11 551 days Fix inconsistent comparison of Python and Sage floats with "nan". AlexGhitza
#5572 needs_work 03/19/09 589 days fast_callable improvements (followup for #5093) cwitty
#11872 new 09/29/11 629 days Discrimant of RDF polynomials fails AlexGhitza
#11797 new 09/13/11 644 days Finite field elements are allowed in exponents AlexGhitza
#10483 needs_info 12/16/10 753 days Deprecate the misuse of symbolic variables as polynomial variable AlexGhitza
#11323 new 05/10/11 770 days allow floats to be taken to complex powers AlexGhitza
#8111 new 01/28/10 853 days gcd of rationals is trouble AlexGhitza
#7085 needs_work 09/30/09 890 days fix this laurent series coercion bug somebody
#10365 new 12/01/10 930 days timedelta doesn't recognize Sage integers AlexGhitza
#9524 new 07/17/10 1068 days Nasty bug with polynomial arithmetic and NTL contexts AlexGhitza
#8924 new 05/07/10 1139 days Comparison between Sage and mpmath numbers is broken AlexGhitza
#8766 new 04/26/10 1141 days document the _iadd_ and _imul_ special integer.pyx methods, which mutate self AlexGhitza
#8348 new 02/24/10 1190 days Document that find_root only works in fixed (double) precision AlexGhitza
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