All Questions
4
questions
1
vote
2
answers
143
views
How can I ask the Wolfram Language to tell me if a hypothetical expression with a particular head would be atomic or not?
Integers in the Wolfram Language are atomic expressions, while uses of the Map function are not atomic.
But if you didn't know this, how could you find out using only the Wolfram Language? The best I ...
- 347
1
vote
3
answers
180
views
Elimination of terms not containing at least one variable from a set
I have an expression with each term therein either containing at least one $n_i \in \left\{ n_1 , n_2 \dots , n_{5} \right\}$ or no $n_i$ at all. I would like to easily eliminate all the terms that ...
- 510
7
votes
2
answers
231
views
Efficient Search for specific Terms in symbolic Expression
I have a large symbolic expression with six variables a,b,c,d,e,f per term, roughly like this:
...
- 2,182
5
votes
4
answers
1k
views
Replace every Minus to Plus in Expression
Thought this is a rather simple thing, but I was not able to find a solution.
I have a polynomial expression like:
...
- 2,182