Point3D
Merge pull request #7522 from akshayah3/Point3D

Point3D class in Geometry
7547: nsolve recognizes systems with Eq
Merge pull request #7548 from smichr/nsolve

7547: nsolve recognizes systems with Eq
Fix `Basic.rewrite()` behavior

Fixes the behavior of `Basic.rewrite` to call the opropriate rule
function.  Furthermore, added handling for `deep` keyword to
`Basic.rewrite()`, which defaults to `True`.  This change allows the
removal of `Function.rewrite()` and `physics.quantum.QExpr.rewrite()`
methods, however, the default behavior is changed from `deep=False` to
`deep=True`.
Revert physics.quantum.QExpr.rewrite to fix spin doctest
Issue #7537: Add alias for some of the methods in sympy.sets

This commit adds aliases for some of the existing methods so as to be
compatible with Python's builtin set/frozenset type.
Merge pull request #7556 from flacjacket/rewrite_fix

Fix `Basic.rewrite()` behavior
Added egyptian_fraction function for Egyptian Fractions calculation
Merge pull request #7557 from skirpichev/4122_egyptian_fraction

Added egyptian_fraction function for calcualting Egyptian Fractions
Merge pull request #7553 from amitsaha/sets_compat

Issue #7537: CPython set/frozenset compatible FiniteSet interface