On Mon, Sep 28, 2015 at 1:27 PM, Ken Hammer <kfh...@earthlink.net> wrote:
> A simple "type" problem?
>
> The following code works as a py file with the XX'd lines replacing the two
> later "raw_input" lines.
> Why do the "raw_input" lines yield a TypeError: 'str' object is not callable?
> Same result if I use/omit
> the parens around the poly tuple.
>
> #### evaluate a polynomial as formula for a defined function
> ##poly = (0.0, 0.0, 5.0, 9.3, 7.0) # f(x) = 7x^4 + 9.3x^3 + 5x^2
> ##x = -13
> poly = raw_input("Type, 0.0-n ,") ## these do not work in place of
> above
> x = raw_input("Type your val of x, ") ## 'str' object is not callable?
y = int(x) #see below
>
> total = 0.0
> for i in range(len(poly)):
> totalTerm = poly[i]* (x ** i)
Here you would get "unsupported operand type" since you are getting
the ith power of a string.
> total += totalTerm
> print "totalTerm ", i , totalTerm
> print "Equation Value", total
>
> #### Good answer follows:
> totalTerm 0 0.0
> totalTerm 1 0.0
> totalTerm 2 845.0
> totalTerm 3 -20432.1
> totalTerm 4 199927.0
> Equation Value 180339.9
>>>>
> thanks, Ken Hammer
>
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