So, for programming Marce, Carmen and I will be making a mini project which will inform the user about the percentage in which people have been absent.

For this, there will be needed an input of the amount of days people haven't attended the MPC, and the program will print out the percentage you've been out.

So I've been advancing in Ruby so far. I've learned about Strings, about controlling flow, comparisons and operators.

You find a lot of logic here.
Long live Codecademy.

Kyle told us that he would arrive late, so the last group presented their Project Euler's problem: number 10. That problem is sick, insane! Haha,
This is what it prescribes: 

The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.

Find the sum of all the primes below two million.


So, first I came to the idea that if we found a common sense in all prime numbers the formula could be done. But, there was an issue: Pablito mentioned that there's no formula to this beauty.

But still, I recognized that there are some numbers that if they were divided with primes, the remainder wouldn't be zero. These are the numbers we came up with:

2, 3, 7...

But, the theory was wrong. There are exceptions. So, we're still figuring out. 

Today Carmen and Pablito worked in their problem out of Project Euler. They decided to do number 20. After several trials and errors, they did it.

Here's the problem:


n! means n  (n  1)  ...  3  2  1

For example, 10! = 10  9  ...  3  2  1 = 3628800,
and the sum of the digits in the number 10! is 3 + 6 + 2 + 8 + 8 + 0 + 0 = 27.

Find the sum of the digits in the number 100!


After that we discussed on how important libraries are in Guatemala and Kyle shared his "Sopa de Piedra" project with us. This project consists in a library for children who want to learn by themselves go and have fun and learn lots of stuff! There is were real things happen! 

All around us we can find some kinds of patterns, even with the naked eyes we can see in our apparent chaotic universe components that actually repeat themselves and show how mysterious  our surroundings are. Specially when they're related to math, one of the science we consider to be the more precise and factual! Take a look at this video which explains better what I'm talking about: