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JJJohn
  • Member for 5 years, 1 month
  • Last seen more than a month ago
13 votes
1 answer
6k views

Do the vertical bar and semicolon denote the same thing in the context of conditional probability?

5 votes
2 answers
628 views

Is there a geometric interpretation about the euclidean distance between of 2 matrices?

5 votes
2 answers
5k views

how to justify the logistic function is the inverse of the natural logit function?

5 votes
3 answers
550 views

Is "assignment" a canonical term in math?

5 votes
3 answers
990 views

In the context of mathematics, What is the difference between equation and formula? [duplicate]

4 votes
1 answer
761 views

Is the Minkowski distance actually the $p$-norm function?

4 votes
4 answers
946 views

What is the name of this formula derived from the Poisson distribution?

4 votes
1 answer
9k views

Is there a formula to calculate the euclidean distance of two matrices?

4 votes
2 answers
2k views

is log 0 is or is not undefined?

3 votes
2 answers
1k views

Given a set (universal set) $Ω = \{1,2,3,4\}$, the smallest possible σ-algebra on $\Omega$ is this set $S = \{\{1,2,3,4\},\emptyset\}$, is it?

3 votes
6 answers
1k views

What is the name of rule: $a^2\cdot b^2 = (ab)^2$ and how to justify it mathematically?

3 votes
4 answers
123 views

Is $\left\{\begin{bmatrix}1\\0\\0\end{bmatrix},\begin{bmatrix}0\\1\\0\end{bmatrix},\begin{bmatrix}0\\0\\0\end{bmatrix}\right\}$ a vector space?

2 votes
2 answers
47 views

There are 2 equations of 1-D projection, are they the same?

2 votes
1 answer
615 views

How to pronounce "$\mapsto$", as in "$x\mapsto f(x)$"? [duplicate]

2 votes
3 answers
158 views

Is or is not A set determined by its ancestors (elements)?

2 votes
1 answer
63 views

Is "constant theme" a canonical name of a math term? what is it?

2 votes
1 answer
2k views

What exactly is significand?

2 votes
2 answers
91 views

Are the domain of the density of a random variable and the domain of that random variable itself same, in the context of normal distribution?

2 votes
2 answers
108 views

Is the tuple (∅,{∅}) a measurable space? [closed]

2 votes
2 answers
444 views

What rules guarantees that a variance is always positive?

2 votes
0 answers
24 views

Are the term **sample space** in Machine Learning and the one in probability theory the same?

2 votes
2 answers
726 views

Is there a term do refer to a "set of sets" in math, to distinguish set of regular math objet?

2 votes
1 answer
55 views

Could there more than one variable in an elementary function?

2 votes
2 answers
109 views

How do I find the minimum positive integers for a set of 6 unknowns with the 3 inequalities?

1 vote
2 answers
249 views

Why could this formula "dist(x, y) = sqrt(dot(x, x) - 2 * dot(x, y) + dot(y, y))" compute the euclidean distance of two matrices?

1 vote
1 answer
48 views

Could someone help me on the inverse function of $t_{x,y}=m(m+1)+(y-x)(-1)^{\operatorname{mod}(m,2)}$?

1 vote
1 answer
84 views

Does one level of worst-case recursion in quicksort cost $\Theta(n^2)$ or $\Theta(n)$?

1 vote
1 answer
75 views

In the context of asymptotic notations, does the equation $\Theta(1) + \Theta(1) = \Theta(1)$ hold?

1 vote
1 answer
70 views

Regarding page $171$ of CLRS $3$rd edition, which line is the exact beginning of the iteration for the PARTITION procedure?

1 vote
2 answers
81 views

Is this notation, $\{(x_i, y_i) \mid (x_i, y_i) \in \mathcal{D}, x_i^{(j)} = c\}$, legal and clear from set theory perspective?

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