Comment #8 on issue 3117 by smi...@gmail.com: -+inf with pretty printer and
Float('inf')
http://code.google.com/p/sympy/issues/detail?id=3117
What's the difference between symbolic and floating infinity? This is
really strange to have SymPy dealing with two types of infinity. And the
output you get demonstrates the oddness. The answer hard coded for symbolic
-infinity is oo (which matches wolfram Alpha).
Do we really want a number line that looks like
-oo, more negative than most negative float, most neg float, (0, 0.0), most
pos float, bigger than most positive float, +oo?
What is the purpose of the floating 0 and infinities?
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