Skip to main content
Mathematics
G Cab's user avatar
G Cab's user avatar
G Cab's user avatar
G Cab
  • Member for 8 years, 5 months
  • Last seen more than a month ago
  • Rieti, Italy
Profile Activity
Stats
35,404
reputation
1.3m
reached
1,804
answers
8
questions
Communities
View all
About

I am an engineer, presently retired

Badges
View all badges
3
gold badges
22
silver badges
63
bronze badges
Top tags
View all tags
386
Score
272
Posts
15
Posts %
242
Score
161
Posts
9
Posts %
209
Score
178
Posts
10
Posts %
209
Score
146
Posts
8
Posts %
205
Score
172
Posts
9
Posts %
196
Score
117
Posts
6
Posts %
Top posts
View all questions and answers
46
Finding three unknowns from three equations. Solvable? If so, how?
Mar 11, 2018
33
Consecutively Adding Sines
Mar 8, 2018
33
Equation of a "tilted" sine
Sep 15, 2017
24
Mathematical ideas that took long to define rigorously
Feb 3, 2018
22
What is the tangent at a sharp point on a curve?
Mar 18, 2019
18
A ping-pong ball lying inside a wine glass
Sep 25, 2016
13
Prove $\int_{0}^{\pi/2} \int_{0}^{\pi/2} \frac{\theta\cot\theta-\varphi\cot\varphi}{\cos\theta-\cos\varphi} \text{d}\varphi\text{d}\theta = \pi\ln2$
Nov 16, 2020
13
The staircase paradox, or why $\pi\ne4$
May 19, 2019
12
If I roll three dice at the same time, how many ways the sides can sum up to $13$?
Mar 2, 2016
11
An eely function $\mu (n):\;\;\prod\limits_{k = 0}^{n - 1} {\left( {\mu (n) - \mu (k)} \right)} = 1$
Dec 7, 2020
Top network posts
View all network posts
6
Inverse of a matrix with binomial entries
5
Why is the Roman acronym SPQR and not SPR?