Can you graph these kinds of equations with any free programs? < I've been trying to find a way to graph this function without buying Mathematica but I haven't found a way. It might be possible with the free online Wolfram Alpha but I haven't succeeded with setting $0<z<0.001$. Any recommendations on how I might be able to get the wished result would be great, with any available program.

Using Wolfram Alpha, simply name the function you wish to plot $z$ and then specify the range for $z$ as well. I plotted your function here:

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