Home > Author Archives: Carlos Santos (page 3)

Author Archives: Carlos Santos

Frequency of master studies in Electrical and Computer Engineering. Freelancer developer (also works remotely): Websites, Web Applications (JAVA and PHP), J2SE/J2EE, C/C++ and Android. Private instructor and professional trainer in computer science and electrical engineering. Teaches in classrooms and remotely using Skype and Team Viewer. Interests: Music, audio, video, science, astronomy and mythology.

Dynamic arrays with structs in C++

In previous posts (“Using pointers in C / C++” and “malloc and realloc functions in C / C++“) I talked about pointers and dynamic arrays in C/C++. On this article I’m going ...

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malloc and realloc functions in C / C++

In a previous post – “Using pointers in C / C++” – I made a brief introduction regarding pointers in C. Now, I’m going to talk about the malloc and realloc functions. ...

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Using pointers in C / C++

For some students, handling pointers in C / C++ is hard to understand. To start with, it’s always nice to remember that everything that happens in a computer, happens in its memory. ...

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How to use a datalist in HTML5

HTML5 brought several new interesting features. One of them is the datalist that I will address in this post. A datalist allow us to define a set of values that could be ...

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Escaping a shortcode in WordPress

Some people asked me how I managed to “escape” a shortcode in WordPress in the article I posted about the plugin “WM jqMath” – “How to use jqMath in WordPress“. So, I ...

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How to use jqMath in WordPress

Sometimes, adding maths formulas to a post is a nice to have. The library Mathscribe jqMath, developed by Dave Barton, offers a simple way to insert maths formulas in web pages. So, ...

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Logical or boolean operations

Chapter II -Logical Systems Logical or boolean operations Chapter I – Numeral Systems Logical or boolean operations Introduction Operations with more than one bit Practical example Boolean Algebra and Logical Functions Logic ...

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Negative integers in binary

Chapter I – Numeral systems Negative integers in binary Numeral systems Binary-Decimal conversion with floating point Arithmetic operations in binary Negative integers in binary How to represent negative integers in binary Notions ...

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“New Horizons”: To the discovery of Pluto

The space probe New Horizons is almost reaching the nearest distance from Pluto in its fantastic journey. It will be by July 14. Or, for the reader that read this post after ...

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Resistors in series and parallel circuits

Introduction In the area of electrical engineering, one of the basic subjects we learn are circuits of direct current with resistors in series and in parallel. To start with, let’s remind that ...

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