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bool, relational: added as_set method #2781

Merged
merged 1 commit into from Jan 19, 2014
Merged

bool, relational: added as_set method #2781

merged 1 commit into from Jan 19, 2014

Commits on Jan 18, 2014

  1. bool, relational: added as_set method 

    `as_set` is the inverse method for existing `as_relational`
method for sets. `as_set` converts a univariate boolean or
relational expression to real set.

Example:

In [1]: from sympy import And, Or

In [2]: from sympy.abc import x

In [3]: And(x<2, x>-2).as_set()
Out[3]: (-2, 2)

In [4]: (x**2 > 4).as_set()
Out[4]: (-oo, -2) U (2, oo)
    @hargup
    hargup committed Jan 18, 2014
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