This riddle has been as hot and exciting as the game Cuba beat Australia.

There was a waste of good analysis and creative thinking.

Thanks to RARJ, to those who are returning, to Orlando and Regla who are building loyalty.

We continue to miss Charlie and PROA.

Let's go in parts.

Yo

Mention at least two uses, in Mathematics and in everyday life, of the famous constant π

Answer:

Applications in Mathematics are many, I will cite a few:

Calculate the area and perimeter of the circle.

Calculate the area and volume of the sphere, the cylinder, the cone.

In fact, Pi is almost magical, appearing in places you wouldn't expect.

For example, it is part of the calculations to locate an object or person on a map using GPS technology, and in pendulum clocks, the mathematical formula for the time it takes for the pendulum to swing back and forth is based on it.

In mathematical statistics on the normal distribution of expectation and standard deviation, and also on Cauchy's theorem.

In complex numbers;

recursive sequences;

logistic sequences;

series;

Integral...

In life, in daily interpersonal communication, in expressions such as the following:

• Evolve you are more constant than pi.

• You didn't understand a bit...

I liked the answer of the engineer from Santiago:

ly

Pi enso... circle area π r2.....in aerospace calculations, aviation, submarines, ballistic rockets... in short Pi, the infinite and irrational number is part of the essence of unimaginable algorithms mathematicians...!ah!

Among others, the beautiful function of the Breast is very important....

There is another answer that requires clarification:

Orlando

The constant pi has multiple uses in everyday life.

From cell phones, GPS to calculating pendulums on wall clocks.

What I usually need it for is to calculate, for example, how long is a roll of cable, rebar or a hose that is rolled up.

The diameter is multiplied by the number of turns per pi and gives us its extension.

I ask the outstanding riddle Orlando, to think about his answer about multiplying the diameter by the number of turns, because surely each turn describes a circle with different diameters.

He will tell us.

II

To tie three or more teams in a knockout round, the so-called TQB formula could be used, but there was a new procedure applied in this V World Baseball Classic.

It consists of calculating the quotient, the result of dividing the runs allowed between the outs to defense, of the tied teams.

The lower the ratio, the better the location.

What do you think is a better criterion to break the tie?

The TQB is obtained from the number of runs scored, divided by the innings played on offense, minus the number of runs allowed divided by the number of innings played on defense.

Answer:

The first thing I will say is that the official procedure was approved with its regulations before the Clásico began, although it was much later that Reinier González gave it as breaking news.

They are criteria that are applied in cascade for the tiebreaker of three or more teams.

The runs allowed, then the earned runs allowed, then the batting average, and finally the toss.

It is important to highlight that a procedure applied with ethics and rigor is the same for all the teams in dispute for the tiebreaker.

The one approved in the Classic V has the advantage of being easier to apply than the TQB, and since it is effective I consider it better.

However, it is a topic that demands to put more cacumen from baseball and mathematics.

There were two interesting and substantial answers from two riddles that appear below:

ly

 said:

The variant of using the runs allowed between the outs made to the defense is the most correct and the one that rewards the team's effort...you win games on offense but you materialize it with defense...then this coefficient certifies how much You have behaved effectively as a team...the offense can be collective or individual...you can win a game 3-0...with only three hits with three home runs from the same player and the others did NOTHING at bat , but for sure to get the result they made brilliant defensive moves... that's why I defend this variant...

Fernan

What I understand from the New Procedure (NP) of "dividing the runs allowed between the outs to defense" is: Example with a game between 2 teams A and B;

the NP consists, for A, in dividing the runs scored by B between the putouts executed by A.

In other words, if team A participates in 5 games against other teams, add up all the runs that team A made in each game and divide that result by the sum of all the outs that A managed to score against the different opposing teams. against whom he played.

If I am correct, then I give an example of a series of 3 games between 3 teams (A, B and C) where all have 1 win and 1 loss, each 9 inning game.

Game 1 / AB, runs 4-2

Game 2 / AC, runs 3-4

Game 3 / BC, runs 4-1

Total Runs made to each team:

A: 2(B) + 4(C) = 6

B: 4(A) + 1(C) = 5

C: 3(A) + 4(B) = 7

Total Runs made by each team:

A: 4 to B + 3 to C = 7

B: 2 to A + 4 to C = 6

C: 4 to A + 1 to B = 5

Total putouts made by each team in the 3 games = 27 x 3 = 81

Calculating the quotient (C):

C(A) = 6 / 81 = 0.074

C(B) = 5 / 81 = 0.061

C(C) = 7 / 81 = 0.086

With the assumption that the one with the lowest result is the best, in this case team B.

Regarding the TQB I requested the help of my "friend" Google:

TQB (Team Quality Balance): a formula that in Spanish would be the Team Quality Balance, is obtained from the number of runs scored, divided by the innings played on offense, minus the number of runs allowed, divided by the innings played defensively, it is applied in all IBAF tournaments and even in the World Classics.

When applying the TQB, it will yield an index for all the teams, the one with the highest index will occupy the best position.

TQB = CA/EO – CP/ED or in English (RS/IPO)-(RA/IPD)=TQB.

CA-Runs Scored, EO-Offensive Innings, CP-Runs Allowed and ED-Defensive Innings.

So, calculating for the same series of 3 previous games where each team has 27 times at bat and 27 on the field:

TQB (A) = 7 / 27 - 6 / 27 = 0.037

TQB (B) = 6 / 27 - 5 / 27 = 0.037

TQB (C) = 5 / 27 - 7 / 27 = -0.074

Where A and B are tied for the best position and… you will know how to break the tie…

Between these two, I consider the first method better.

II

A riddle called: "The clock and the ball", by RARJ.

To move the right cerebral hemisphere.

to.

Name three similarities and three differences between a clock and a ball.

Answers:

Similarities:

• In both, a plane that cuts them forms a circle.

• Both have time as the key, the clock marks it and the ball spends it.

• Both as a rule are round and come in square boxes.

Differences:

• The clock does not move independently, the ball does after the hit.

• The clock is less offensive than the ball.

• The ball causes more noise than the clock.

rule

The ball and the clock usually have a round shape (similarity), but the clock marks the time and the ball occupies time in discussions about one or more teams or players (difference)...

Ly

S...1-both are round and come in a square box...

.........2-About 85% of the ballplayers are right-handed when spinning a ball they do it ............ clockwise just like the clock....

........3-in the ball you change the speed and in the clock the time is changed...

........4-the two have a number of marks....

D..1-the clock gives you a face, and the ball it comes with...

........2-the clock is slow, the ball is fast..................

........3-the clock in the middle is-o'clock and a ball in the middle is-strike....

Fernan

Similarities:

Differences:

Orlando

Some similarities between a clock and a ball, are that the clock “Knocks the time” and the ball, is the only thing that can be seen on television “a-hora”.

If you throw a rubber ball into the water, it is nothing.

And the clock?

...has nothing to do with the ball.

The third is that the man makes a "ball of years" who wears a watch.

Another is that on the clock, the hours fly by and when they hit a home run...a ball that goes flying.

Congratulations to those who responded.

b.

If it is Monday and a ball breaks the window of a house, what time does the clock show?

Answer:

5:00 p.m.

Monday is the only day of the week that has five letters.

On the other hand, between 4:30 and 5:30 pm is when the boys return from school and go out to play ball anywhere in the neighborhood.

And now in times of the V Clásico you see much more.

Some answers from you with your picaresque contributions:

rule

For me, it marks the time to start looking for a new glass, wow, the time for the mameyes, because where are they?

Now, surely it's already past 4:30 p.m., which is school dismissal time, and it shouldn't be more than 6 p.m., because mom calls us to the bathroom before it gets dark or the night leaves. light.

The next one is to suck the cardioneurons

Ly

...the teacher had left it blank to find the solution, I think this is it.......

Narration by Boby Salamanca...bottom of the 9th inning, the trio of paticos on the blackboard prepares the pitcher there, pushes himself, throws, connects a long high ball through the left fielder, the ball goes loooooooooooooooooing, and Goodbye lolita of my life....at the time LOLA was killed at 3:00 pm, Armando Capiró's ball disappears and as you can see over there, he throws the ball into JUANA through a window, the crystals jump and then falls into the pot of soup, unstitching the leather to make strip soup... how barbaric, how barbaric.

Fernan

I don't know the exact time, but it must be after 4:00 pm, when the children start to leave the schools.

Taking it to the mathematics that we shared in the column, converting MONDAY into a number is 73 and its DN is 1, it could be 7:30 or 1:00...

It may also coincide with a home run hit on a Monday in the current games...

Congratulations riddles.

c.

What did the ball say to the clock?

And what did the clock say to the ball?

Answer:

Hey watch, I don't have time for you because I have a lot of seams.

(She was a seamstress)

Hey ball, no matter how much they lift you, in a few seconds you fall.

I share some very good ones from you.

rule

Tell me if my time came...

I can't tell you, I'm late!

Ly

Boy, how cute is your mustache and you with those curves, the Lamppost has to take the .......tail...

Fernan

The ball to the clock: "It's time to roll"

The clock on the ball: "I roll but in the same place."

Orlando

The ball told him: watch, don't mark the hours, because I'm going to go crazy... and the clock told him: if you're going to go crazy, don't even think about going out "naked".

Congratulations for such creativity with good humor.

Although they do not stick to the problems raised, I am going to make brief comments on what has been written by two parathinkers, about something that has to do with the V World Classic, which these days is all over Cuba.

The parathinker CLEMENTE NIEVES has made a reflection on the characteristics of baseball and the comparison with soccer;

about the decline of baseball in Cuba and the decreasing attention of the new generations and has outlined the need for strategic changes.

I tell you that a few weeks ago I have been participating in a group of experts to try to present an Innovation Project with the aim of responding to the problem of the decline of our baseball.

CLEMENTE's reflections will be useful for our discussions, and I thank him for his contributions.

The other case is that of Ivan, who said:

Gentlemen, a doubt assails me, to what extent we are going to give entry to social marginality as if that were our Cuban identity.

Naming our national baseball team team asere is for me the greatest lack of respect for our customs and social and sports history.

Think more about that than about the theory of probabilities, to win in baseball you have to be good athletes, not fools or false believers of how much faith exists in this world to achieve undeserved goals.

I urge you to reason.

What the parathinker Ivan raises has been the subject of debate on social networks and in the press in our country.

It is a controversial subject, which deserves a separate analysis.

There are well-founded opinions, both for and against.

I anticipate that I do not agree with everything raised by Ivan, and I promise that I will make my opinion public soon, within the framework of the Column itself or as an opinion article in Cubadebate, to produce a cultured and enriching debate.

Almost closing, I share the response of our Cucalambe:

RARJ

I

Pi is used “pa” to calculate

Circumference Area,

Spheres and their presence

In life it is essential.

Pi can be used

in physics, engineering,

astrology things,

car wheels and used in

pipeline construction

processes .

II

Depending on how

the formula is worked, the TQB

is better, but what is

even is not an advantage.

"This variant does not fit"

I thought when I saw it reduced

But I immediately analyzed it

And I came to the conclusion

That the ones noted are,

For others, the ones allowed.

RARJ

Hoy es el Día de la Prensa,
Hoy es el Día de Pi
Y esto tiene, Profe, aquí
Significación inmensa.
En Para Pensar se Pi-ensa,
Todos redactan muy bien,
Esta Sección, como ven,
Que busca a todo un sentido
Aunque tiene a Pi incluido
Tiene de Prensa también.
FELICIDADES PARA
MATEMATICOS Y PERIODISTAS

Nos vemos el próximo lunes 20 de marzo con una novedad: tendremos una nueva asistente en nuestra Columna, ya que a la querida y eficiente Claudia Fonseca le han asignado otras misiones en Cubadebate. Aprovecho para agradecerle a Claudia su profesionalidad, su disposición permanente a sacarme de apuros, y su amable paciencia. ¡Gracias querida Claudia!

The new assistant will be a prominent journalist from Cubadebate, who a few years ago was attending our Column for a few weeks.

This is Thalía Fuentes Puebla, who recently won a National Journalism Award.

We welcome Thalia.