I got this error msg for this line of code:
n = -(2(a**3.0)/27.0 - a*b/3.0 + c) (where a = 1, b = 2, c = 3)
And was baffled until I realized the line should be n = -(2*(a**3.0)/27.0 - a*b/3.0 + c)
But I still don't understand what "callable" means. Can someone help?
Thanks,
Dick Moores [EMAIL PROTECTED]
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