Hi, I ask you to help with the implementation of the calculation of the sum of the series for ranked variables, since this was done in the MathCAD program. I enclose the codes of the programs MathCAD and SMath. It would be nice if they produced the same result, though I don’t really understand how to implement this in SMath. Please correct my code if there are errors.
thanks
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Hi, I ask you to help with the implementation of the calculation of the sum of the series for ranked variables, since this was done in the MathCAD program. I enclose the codes of the programs MathCAD and SMath. It would be nice if they produced the same result, though I don't really understand how to implement this in SMath. Please correct my code if there are errors.

Smath does not have the range summation Mathcad style.
The code is as per doctored by Davide.
You may have to watch the divide by zero.
Better use Smath Floor from main f(x) menu.
Takes long times to plot Eqef(j)...

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