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This is Internal Pointers. It's a place where I collect all the knowledge I'm gathering through my existence. I've found that writing down things in a well-formatted fashion helps me to better fix ideas in my mind. Topics will range between Mathematics, Information Technology, Finance, Psychology and any other scientific subject that tingles my mind. I don't want to teach you anything within these pages, but if you find something useful you are free to share it. All feedback are welcome.

— Triangles, May 2015

articles series

Adventures in stock markets

Everything I wanted to know about public companies, their shares and what one can do with them.

First approach to machine learning

Wandering through the field of study that gives computers the ability to learn without being explicitly programmed. Mainly based on Machine Learning course @ Coursera.

latest articles

How to optimize the gradient descent algorithm

A collection of practical tips and tricks to improve the gradient descent process and make it easier to understand. written on April 01, 2017

C++ namespaces with private members

A cool alternative to the C way of having static global variables. written on March 18, 2017

Multivariate linear regression

How to upgrade a linear regression algorithm from one to many input variables. written on March 05, 2017

The gradient descent in action

It's time to put together the gradient descent with the cost function, in order to churn out the final algorithm for linear regression. written on February 18, 2017

The gradient descent function

How to find the minimum of a function using an iterative algorithm. written on February 05, 2017

Bonds, a gentle introduction

Digging into an IOU-based investment strategy, where investors lend money to companies and governments and make money through interest payments. written on January 22, 2017

How to enable remote MySQL access on Debian

How to allow remote connections from any host to your MySQL server. written on December 24, 2016

Buying and selling stocks: how-to

Let's disclose what happens behind that click on the "buy" button. written on November 20, 2016

Android to Debian/Linux file transfer via MTP

A painless tutorial on how to share files from and to your Android device. written on October 01, 2016

The most important metrics for stock investments

What are the most famous stock metrics and how to translate them into something useful to humans. written on September 17, 2016

Understanding the meaning of lvalues and rvalues in C++

A lightweight introduction to a couple of basic C++ concepts that act as a foundation for bigger structures. written on September 15, 2016

How to add new menu items to XFCE menu

Just create a simple text file and you're done. written on July 27, 2016

What is a stock?

Understanding how stocks work both from companies' and investors' point of view. written on July 11, 2016

Object literals vs constructors in JavaScript

I want to use JavaScript in a more object-oriented way. written on June 20, 2016

Real estate investing with REITs, MLPs and mutual funds

A way of investing in lands and buildings without getting your hands too dirty. written on June 12, 2016