Skip to main content
phy_math's user avatar
phy_math's user avatar
phy_math's user avatar
phy_math
  • Member for 7 years, 1 month
  • Last seen more than a month ago
8 votes
6 answers
384 views

Extracting arguments from a list of function calls

7 votes
5 answers
163 views

Generating all expressions of the form $a*x + b*y + c*z$ where $a,b,c\in \{ -1,0,1\}$

7 votes
8 answers
713 views

How can I prepend an element to every list in a list of lists?

6 votes
5 answers
258 views

Count and positions of an element in a given list

5 votes
4 answers
111 views

Decomposing input to two list

5 votes
8 answers
428 views

Matching position of same elements in two lists

4 votes
4 answers
127 views

Map, applying list in a defined function

3 votes
4 answers
69 views

Making function $S$ such that inputs as an list $\{1,3,2,4, \}$ and produces $s_{1234}$

3 votes
2 answers
113 views

Implementing anti-symmetric function on two index and for more in systematic way

2 votes
1 answer
92 views

Dropping non-commutative product in the end

2 votes
1 answer
117 views

Handling dummy variables 2

2 votes
2 answers
128 views

For a given set, how to get rid of the some particular set?

2 votes
1 answer
50 views

ordered set inclusion

2 votes
1 answer
32 views

ordered set inclusion 2

2 votes
0 answers
62 views

Pick position of a particular list in the list of lists [closed]

2 votes
0 answers
187 views

Given n-polynomials, how can I find the linearly independent polynomials?

1 vote
1 answer
250 views

Meaning of Out[0]

1 vote
1 answer
32 views

Substitution and make a list $ List[f[A, x]@{a1, a2}] =? \{f[a1,x],f[a2,x]\}$

1 vote
2 answers
110 views

Finding negative powers of polynomial expressions

1 vote
2 answers
64 views

Neglecting coefficients of a given list

1 vote
1 answer
53 views

l,r-operations on words $[[[1,2],3],4] \cdots, n]$, $[1,[2,[3,\cdots, [n-1,n]\cdots ]]]$

1 vote
0 answers
60 views

Defining function recursively with increasing variables

1 vote
1 answer
46 views

Reading off coefficients as array

1 vote
2 answers
45 views

Making function for a given input of sum of sequences, choose two sequence $a_i, b_j$ and substitute all other sequence zero

1 vote
1 answer
66 views

$P=QR$ decomposition of given list

1 vote
1 answer
99 views

$P=QRS$ decomposition of given list

1 vote
2 answers
61 views

combine those $n$ lists without specifying whole $n$ sets explicitly?

1 vote
4 answers
72 views

Finding variables in a list of arrays [closed]

0 votes
0 answers
52 views

Partitioning set including empty set; P=QRST

0 votes
1 answer
76 views

substitution $A \mapsto A + \delta_A$ with some operator $\delta_A$