Can you give the context in which you've found this symbol? Π Π is frequently used for products, and ∐ ∐ is frequently used for disjoint unions or for coproducts.

DevOps engineers are those who are good at debugging, troubleshooting, analyzing prod issues and providing solutions. Who have good hands on technologies like unix shell scripting, perl, SQL etc.

Earlier today I was going through an old text at my university's library which uses the Big X symbol with sub- and super-scripts (I believe in LaTeX this would be \\varprod or \\bigtimes, but it seem...

Jun 29, 2020 · By definition, an infinite product $\\prod (1 + a_n)$ converges iff the sum $\\sum \\log(1 + a_n)$ converges, enabling us to use various convergence tests for infinite sums, and the Taylor …

Apr 13, 2016 · We assume that $\sum |a_n|^ {2}$ converges, then I want to conclude that $\prod (1+a_n)$ converges to a non zero element $\iff$ the series $\sum a_n$ converges.

Nov 1, 2024 · This question shows research effort; it is useful and clear

Let $ p_1<p_2 <\\cdots <p_k < \\cdots $ the increasing list in set $\\mathbb{P}$ of all prime numbers . By sum of infinite geometric series we have $\\sum ...

Sep 13, 2016 · Compute:$$\prod_ {n=1}^ {\infty}\left (1+\frac {1} {2^n}\right)$$ I and my friend came across this product. Is the product till infinity equal to $1$? If no, what is the answer?

Dec 6, 2022 · Consider the functions f(x) = ∏∞ n=1(1 −xn) f (x) = ∏ n = 1 ∞ (1 x n) and g(x) = ∏∞ n=1(1 +xn) g (x) = ∏ n = 1 ∞ (1 + x n) f(x) f (x) is defined for x ∈ [−1, 1] x ∈ [1, 1] and g(x) g (x) is defined for …

Jan 3, 2021 · How can I prove that $$ \prod_ {n=1}^ {\infty} \left (1+\frac {2} {n}\right)^ {\large { (-1)^ {n+1}n}} \,= \frac {\pi} {2e}$$ The result is given here (result 48).