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Account age
3 yrs
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🧰 Free analysis for Grigory Merzon
Known for
34 views
a part of the English translation of our book «Basics of Mathematics in Problems (with solutions and comments)» is now freely available at https://dev.mccme.ru/~merzon/pscache/v08eng-part.pdf
«In the mathematical classes of School #57, the well-know Moscow secondary school specializing in mathematics, besides lessons in algebra and geometry, there is another subject, traditionally called ‘mathemat
27 views
y=x³+px+q for different (p,q)
4 views
…actually this is just a form of CLT and for any polynomial we'll see a normal distribution (maybe after restriction on some arithmetic progression: e.g. if our polynomial is even…)
but if we allow polynomials with negative coefficients the situation becomes more interesting
pic on the right plots coefficients of (1+3x-x²+x^3)^64…
(2/N)
1 views
Long time ago I've made a web-version of slides about sliding ladder & Copernicus' thm. Now I'm uploading an English translation: https://dev.mccme.ru/~merzon/mirror/mp-cat/index-en.html
(Math is from the book 'Lines and curves', pics were made by M.P.)
📊 Post engagement
10
Avg engagement / post
18.2%
Engagement vs followers
Jan 2023
On Mastodon since
🔥 Top post: a part of the English translation of our book «Basics of Mathema · 34 likes + reposts
📊 Activity & format
Posting cadence
0.14 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 7 text · 4 image · 1 video.
Follower / following
1.4×
Follows 38 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
🔥 Top post
a part of the English translation of our book «Basics of Mathematics in Problems (with solutions and comments)» is now freely available at https://dev.mccme.ru/~merzon/pscache/v08eng-part.pdf
«In the mathematical classes of School #57, the well-know Moscow secondary school speci…
Long time ago I've made a web-version of slides about sliding ladder & Copernicus' thm. Now I'm uploading an English translation: https://dev.mccme.ru/~merzon/mirror/mp-cat/index-en.html
(Math is from the book 'Lines and curves', pics were…
can you believe that conjugation of quaternions is a 'polynomial' function: bar q = -1/2 (q + iqi + jqj + kqk)?
it doesn't contradict anything (in fact, it's easy to prove) but still looks very weird (to me)
▶
just playing with manim
…actually this is just a form of CLT and for any polynomial we'll see a normal distribution (maybe after restriction on some arithmetic progression: e.g. if our polynomial is even…)
but if we allow polynomials with negative coefficients th…
take an arbitrary polynomial P(x) with non-negative coefficients and raise it to a large power
we'll get a lot of monomials with various coefficients… let's look not at the individual coefficients but at the plot of all coefficients
what …
an implementation that uses only arithmetical operations (let's see if code formatting works here)
```python
from mpmath import mp,mpf,nstr
mp.dps = 120
def mysin(x,n):
term = x
res = x
for k in range(1,n):
term = -term…
how to compute (an approximation to) π?
one recipe (that I recently learned from K.Knop and like a lot): take a couple of iterations of x→x+sin(x)
if x=π+ε then x+sin(x)≈π+ε³, so this converges really fast: after just 4 iterations the erro…
y=x³+px+q for different (p,q)
The sum of two cubes, X³+Y³ is divisible by X+Y. What about the sum of three cubes?
Well, modulo X+Y+Z we have X³+Y³+Z³=X³+Y³-(X+Y)³=-3X²Y-3XY²=-3XY(X+Y)=-3XYZ. So X+Y+Z divides X³+Y³+Z³-3XYZ.
In fact, since X³+Y³+Z³-3XYZ is invariant unde…
https://arxiv.org/abs/2411.07409 (Alain Connes, Joseph Kouneiher)
«This article reflects on the life and mathematical contributions of Pierre Cartier, a distinguished figure in 20th- and 21st-century mathematics. As a key member of the Bou…
https://ojs.ejournals.eu/SHS/article/view/9573/7503
Slava Gerovitch. The Kitchen and the Dacha: Productive Spaces of Soviet Mathematics. Studia Historiae Scientiarum 23 (2024)
«…For many Soviet mathematicians, instead of being a refuge fro…
🐘 Community & instance
Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Jan 2023
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2023 — 3 years ago.
👁️Averages 10 views per post.
📤Posts about 0.1× per week.
🕵️ Fake follower check
Estimated80/100
Excellent
Credibility score
97%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 97% real, active audience · Low fake-follower risk.
- Strong engagement (~0.2× of followers engage each post) — an active, real audience.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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