sympy/core/interval.py

   1
   2 from basic import Basic, sympify
   3
   4 class Interval(Basic):
   5
   6     def __new__(cls, start, end, **assumptions):
   7         start = sympify(start)
   8         end = sympify(end)
   9         return Basic.__new__(cls, start, end, **assumptions)
  10
  11     @property
  12     def start(self):
  13         return self._args[0]
  14
  15     @property
  16     def end(self):
  17         return self._args[1]
  18
  19     def tostr(self, level=0):
  20         r = '[%s, %s]' % (self.start, self.end)
  21         if self.precedence <= level:
  22             r = '(%s)' % (r)
  23         return r
  24
  25