# Tagged Questions

Questions using the Sum command, especially for series and other algebraic objects, and related functions such as SumConvergence

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### Double Sum Involving Condition

I would like to compute the dimensions of some small free nilpotent Lie algebras. However, I am totally new to this and I could not figure out how to write the double sum which gives the dimension of ...
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### sum involving binomial coefficient

To evaluate $\sum_{\substack{\text{even }k\\ 2\leq k\leq m-2}} \binom{m-2}{k-1}(k-1)$, where $m$ is an even integer. Running the following in Mathematica 10.3.0 (October 9, 2015) ...
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### Euler-Maclaurin summation

I want to compute asymptotic approximations to partial sum of harmonic series in Mathematica, using Euler-Maclaurin summation formula. ...
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### Plotting a Double Sum

I am attempting to plot a graph of a function that is the absolute value of the double sum of an exponential function, and I keep getting errors. Here is the code: ...
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### Slow sum computation

I'm doing a simple OLS regression and I strikes my attention that this very simple computation takes several seconds to perform in Mathematica ...
How do I do an Engel expansion in Mathematica? And find the unique non-decreasing sequence of positive integers $\{ a_1 ,a_2,a_3,\dots \}$ , such \frac{e}{\pi}=\frac{1}{a_1}+\frac{1}{a_1 a_2}+\...