1:43 PM
@MartinSleziak So is back again.
This time the tag creator also created tag-excerpt and tag-wiki.
2

While solving a question given by my friend I found a problem in finding the real roots, I tried the question many times but I could not find any real solution of that equation. The equation was: $5x^2-5y^2-8xy-2x-4y+5=0$ Please help me to find its real solution

0

I have got a question which is as follow: Determine $x,y,z ∈ R$ such that $2x^2+y^2+2z^2-8x+2y-2xy+2xz-16z+35=0$. This is a quite filthy looking equation and I know that solving it must involve some factorisation etc, but the problem is my thoughts are not seeming to work on paper. I need...

Does it make sense to raise this issue in 2016 thread, or is it easier to wait for tag management 2017?

1 hour later…
3:03 PM
I see in the list of new tags. The tag-info is empty. Currently it contains two questions, is seems that each of them is on different topic.
6

Recently a new prime number has been discovered, which eliminates one of the six remaining candidates for the smallest Sierpinski numbers. So I was reading the wikipedia article about the Sierpinski number, where I came across what is called a covering set of primes for a Sierpinski number. Diffe...

In number theory, a Sierpinski or Sierpiński number is an odd natural number k such that k × 2 n + 1 {\displaystyle k\times 2^{n}+1} is composite, for all natural numbers n. In 1960, Wacław Sierpiński proved that there are infinitely many odd integers k which have this property. In other words, when k is a Sierpiński number, all members of the following set are composite: { k 2 ...
3

About Sierpinski triangles: Express the areas of the shaded triangles in the $n$th stage as a sum of a geometric series. How do I represent the increasing triangles as a partial sum of a geometric series? Sierpinski triangles: The Sierpinski triangle iterates an equilateral triangle (stage 0) b...

The Sierpinski triangle (also with the original orthography Sierpiński), also called the Sierpinski gasket or the Sierpinski Sieve, is a fractal and attractive fixed set with the overall shape of an equilateral triangle, subdivided recursively into smaller equilateral triangles. Originally constructed as a curve, this is one of the basic examples of self-similar sets, i.e., it is a mathematically generated pattern that can be reproducible at any magnification or reduction. It is named after the Polish mathematician Wacław Sierpiński, but appeared as a decorative pattern many centuries prior to...
According to the list of new tags, the tag was created Dec 4 at 11:54, so most likely in this questions.

2 hours later…
4:51 PM
I see that you have created (categorical-logic) tag. It might be useful to create also tag-wiki or at least tag-excerpt. It might help other users to use the tag correctly. (This is probably not a problem here, since the tag name seems to be descriptive enough.) Another reason is that the tags used on only one question are automatically deleted after certain time unless they have tag-wiki. — Martin Sleziak 52 secs ago