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Results tagged with evaluation
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user 1643
Questions about how Mathematica evaluates expressions, tracing evaluation (Trace*), handling expressions in unevaluated form (Hold*, Unevaluated), nonstandard evaluation, etc.
4
votes
2
answers
144
views
Confused with HoldForm in Postfix notation
Why does the following code produce different result? In my mental model, they should be the same.
Table[With[{x = i^k}, HoldForm[x]], {k, 1, 5}]
With[{x = i^k}, HoldForm[x]] // Table[#, {k, 1, 5}] & …
- 757
6
votes
5
answers
360
views
How to make a table of $\sum_{i=1}^n$?
I want to create a table of $\displaystyle \sum_{i=1}^n i^k$ for $1\le k\le 5$. The output I want to obtain is a TeXForm output as follows.
\begin{align}
\sum_{i=1}^n i &=\frac1 2 n(n-1)\\
\sum_{i=1 …
- 757