Status: Valid
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 3795 by [email protected]: math domain error from plot
http://code.google.com/p/sympy/issues/detail?id=3795

plot(sqrt(100 - x**2) + 20 - x, (x, -20, 20))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "sympy\plotting\plot.py", line 1184, in plot
    plots.show()
  File "sympy\plotting\plot.py", line 198, in show
    self._backend.show()
  File "sympy\plotting\plot.py", line 975, in show
    textplot(ser.expr, ser.start, ser.end)
  File "sympy\plotting\textplot.py", line 27, in textplot
    y[x] = f(a + (b - a)/float(W)*x)
  File "<string>", line 1, in <lambda>
ValueError: math domain error


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