Differences between revisions 1 and 2
⇤ ← Revision 1 as of 2009-03-28 15:20:47 →
Size: 3609
Editor: BurcinErocal
Comment:
← Revision 2 as of 2009-04-12 14:30:16 → ⇥
Size: 3697
Editor: BurcinErocal
Comment: add _polynomial_ info #5763
Deletions are marked like this. Additions are marked like this.
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 * no `.polynomial()`  * no `.polynomial()` [[http://trac.sagemath.org/sage_trac/ticket/5763|Trac ticket #5763]] by Nick Alexander
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 number field creation doesn't handle pynac expressions?   number field creation doesn't handle pynac expressions?

TODO list for symbolics backend switch to pynac

default symbolics -> pynac patch

  • sqrt, etc. convert to SR
  • matrix class for SR

  • default x is SymbolicVariable

  • function()
  • clear_vars()

  • sage/calculus/functional.py stuff expects SymbolicExpressions

  • CallableSymbolicExpressionRing check=True ?

  • variable name is not a valid Python identifier! 
    sage/calculus/calculus.py :6391,6395

no support in sage.symbolics.expression

  • no .polynomial() Trac ticket #5763 by Nick Alexander

    • number field creation doesn't handle pynac expressions? 
    sage/rings/number_field/number_field_rel.py
sage/rings/number_field/number_field.py
sage/rings/polynomial/multi_polynomial_element.py
sage/rings/polynomial/polynomial_singular_interface.py
sage/rings/polynomial/multi_polynomial_libsingular.pyx

  • no .roots() method 

    sage/rings/polynomial/polynomial_element.pyx :3691

  • no .gradient() method 

    sage/modules/free_module_element.pyx :1953

  • .derivative() without explicit variable 

    sage/calculus/functions.py :37,43,52,56,60,64
  • call with unnamed arguments 
    sage/ext/fast_eval.pyx
sage/ext/fast_callable.pyx
sage/gsl/integration.pyx :163
sage/numerical/optimize.py :199,316,320,483
lots in sage/plot

  • no ._fast_callable_() 

    sage/ext/fast_callable.pyx

  • no ._fast_float_() 

    sage/numerical/optimize.py :473

  • no .limit() 

    sage/interfaces/maxima.py :426

  • no support for .integrate() 

    sage/interfaces/maxima.py :588,594,598,604

  • no support for .assume() or .forget()

    should sage.symbolic.expression.Expression have methods called .assume() and .forget()? 

    sage/interfaces/maxima.py :593,603

  • no support for .nintegral() 

    sage/gsl/integration.pyx :161
  • no simplify:

    • .simplify()

    • .simplify_log()

    • .simplify_trig()

    • .simplify_exp()

    • .simplify_radical()

    • .simplify_full()

    • .simplify_rational()

    • and the aliases

  • no pretty printing (.display2d())

  • no .real() (deprecate, and refer to .real_part()?)

  • no .imag() (deprecate, and refer to .imag_part()?)

  • __float__ ??? 

    sage/calculus/wester.py :400,401,409

  • no .taylor() (.series()?) 

    sage/calculus/wester.py :593

  • no .power_series() 

    sage/calculus/wester.py :594

  • no .hessian() 

    sage/calculus/functions.py :117

  • no .solve()

  • .variables() should return tuple

  • no .find_root()

  • no ._sympy_()

  • no .laplace()

  • no .inverse_laplace()

  • no .partial_fraction() (deprecate and rename to .partial_fraction_decomposition()?)

  • no .number_of_arguments() (there is .nargs())

  • no ._maxima_init()

  • no ._mathematica_init()

others

sage/rings/power_series_ring.py sage/rings/arith.py

  • coercion?

sage/rings/polynomial/multi_polynomial_ring.py :270

  • possible bug in pynac

sage/rings/polynomial/polynomial_ring.py

  • I, sqrt(2), etc.

sage/rings/polynomial/polynomial_element.pyx

  • ???

sage/schemes/elliptic_curves/constructor.py

  • desolve expects old symbolics objects

sage/structure/coerce_maps.pyx

  • callable symbolic expression .derivative() tried to be intelligent 

    sage/modules/free_module_element.pyx :1961
  • maxima matrices don't play well 
    sage/matrix/matrix_symbolic_dense.pyx
sage/calculus/tests.py

sage/interfaces/qepcad.py

sage/gsl/integration.pyx