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15
Math.TechQA.Club
2026-04-12 20:13:16
568
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What does the $2$ in $\|Xw-y\|_2$ mean?
Published on
12 Apr 2026 - 20:13
#notation
18.8k
Views
Matrix notation in handwriting
Published on
14 Apr 2026 - 15:03
#matrices
#notation
103
Views
Is there a name or symbol for the matrix division resulting in a scalar?
Published on
11 Apr 2026 - 21:43
#linear-algebra
#matrices
#notation
#terminology
1k
Views
Notation for a unit vector
Published on
12 Apr 2026 - 20:41
#notation
#vectors
416
Views
Notation for the set of holomorphic differential forms
Published on
06 Apr 2026 - 23:42
#notation
#differential-forms
#several-complex-variables
557
Views
Does this math formula with $1/PI\begin{cases}^\infty_{-\infty}\end{cases}$ mean anything?
Published on
14 Apr 2026 - 17:45
#notation
544
Views
What is the significance of using "$a$" vs "$x$" in this text?
Published on
11 Apr 2026 - 21:33
#notation
#terminology
139
Views
How is the second part of a dual number called?
Published on
14 Apr 2026 - 14:06
#abstract-algebra
#complex-numbers
#notation
2.5k
Views
How to express outer sum in a matrix form?
Published on
09 Apr 2026 - 7:23
#linear-algebra
#summation
#notation
4.5k
Views
How to insert Gothic letters in Word?
Published on
14 Apr 2026 - 8:35
#notation
292
Views
What is the meaning of “$YX\wedge$” (from a 1942 article)?
Published on
12 Apr 2026 - 1:49
#measure-theory
#notation
1.7k
Views
Math, logic symbol for "instance of"
Published on
10 Apr 2026 - 13:07
#logic
#notation
667
Views
Why does $\bigcap_{m = 1}^\infty ( \bigcup_{n = m}^\infty A_n)$ mean limsup of sequence of set?
Published on
16 Apr 2026 - 7:54
#elementary-set-theory
#notation
175
Views
What is the meaning of $:s$ after a mathematical symbol?
Published on
11 Apr 2026 - 21:31
#notation
98
Views
Interpretation of composite of random variable
Published on
09 Apr 2026 - 3:40
#probability-theory
#notation
#expectation
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