Maple Why can't I graph w/maple & calc

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The function f(x) = (-1)^{x} / (x * √x) has a restricted domain, only allowing positive integers as valid inputs. Non-integer values lead to imaginary results due to the term (-1)^{x}, while zero is undefined in the denominator. Negative values are also invalid since they result in complex numbers from the square root. For visualizing the integer solutions, a suggestion is made to use a specific graphing tool.
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Homework Statement


f(x)=\frac{(-1)^{x}}{x*\sqrt{x}}


Homework Equations


n/a


The Attempt at a Solution


I'm trying to plot this in maple and my calculator but no dice. What am I doing wrong?
 
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Imaginary Range

The problem is not with Maple or your calculator. If you analyze the function, you will notice that the domain of the function is only positive integers. If non-integers are substituted into the numerator x, a sample result would be (-1)^{1/2} = \sqrt{-1} = i. Similarly, all non-integers will produce a form of an imaginary result. 0 can't be part of the domain either since \frac{(-1)^0}{0\sqrt(0)}=\frac{1}{0}, which is undefined. Finally, no negative number for x will work either since the denominator contains \sqrt{x} and substituting negative values will give you a multiple of i.
However, if you would like to visualize the integer solutions to this equation, try graphing it using ftp://ftp.peda.com/grafeq32.exe.
 
Thanks!
 

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