Dense complex double vectors using a NumPy backend.¶
EXAMPLES:
sage: v = vector(CDF,[(1,-1), (2,pi), (3,5)])
sage: v
(1.0 - 1.0*I, 2.0 + 3.141592653589793*I, 3.0 + 5.0*I)
sage: type(v)
<type 'sage.modules.vector_complex_double_dense.Vector_complex_double_dense'>
sage: parent(v)
Vector space of dimension 3 over Complex Double Field
sage: v[0] = 5
sage: v
(5.0, 2.0 + 3.141592653589793*I, 3.0 + 5.0*I)
sage: loads(dumps(v)) == v
True
AUTHORS:
- – Jason Grout, Oct 2008: switch to NumPy backend, factored out
Vector_double_dense class
-
class
sage.modules.vector_complex_double_dense.Vector_complex_double_dense¶ Bases:
sage.modules.vector_double_dense.Vector_double_denseVectors over the Complex Double Field. These are supposed to be fast vector operations using C doubles. Most operations are implemented using numpy which will call the underlying BLAS, if needed, on the system.
EXAMPLES:
sage: v = vector(CDF,[(1,-1), (2,pi), (3,5)]) sage: v (1.0 - 1.0*I, 2.0 + 3.141592653589793*I, 3.0 + 5.0*I) sage: v*v # rel tol 1e-15 -21.86960440108936 + 40.56637061435917*I
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sage.modules.vector_complex_double_dense.unpickle_v0(parent, entries, degree)¶ Create a complex double vector containing the entries.
EXAMPLES:
sage: v = vector(CDF, [1,2,3]) sage: w = sage.modules.vector_complex_double_dense.unpickle_v0(v.parent(), list(v), v.degree()) sage: v == w True
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sage.modules.vector_complex_double_dense.unpickle_v1(parent, entries, degree, is_mutable=None)¶ Create a complex double vector with the given parent, entries, degree, and mutability.
EXAMPLES:
sage: v = vector(CDF, [1,2,3]) sage: w = sage.modules.vector_complex_double_dense.unpickle_v1(v.parent(), list(v), v.degree(), v.is_immutable()) sage: v == w True