Summing the Fibonacci Sequence

The golden ratio.

An image from nature (by Sustainable San Mateo). The golden ratio approximately (this is a topic for discussion) appears in here and is closely related to the Fibonacci sequence.

Consider the following problem (Project Euler, Problem #2):

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, …

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

Solving this problem by using a programming language is relatively easy and requires only looping through the sequence. How can you tackle this problem without the need for a computer? Spoiler alert: there is only one final step in which we will use a calculator.


Read more · 16 minutes
Data Blogger Courses

Mastering Pandas

In this course, you will learn how to use the Python Pandas. After the course, you will be able to:

  • Load and transform your data
  • Visualizing data using line plots, scatter plots and histograms
  • Merging and storing data

The course also includes more advanced topics, such as data parallelization and aggregation.

You can see all course content under “Curriculum” on Data Blogger Courses and the first three lessons are free. The first free lesson can be found here.

(more…) Read more
Scala logo.

Why Scala?

Scala is jet another programming language in the world of programming languages. Its first version was released in 2001 and was conceptually developed by Martin Odersky, a professor at the EPFL in Switzerland. Fun fact: one of his first projects was called Pizza and was a super set of the Java language. Later on, he developed Scala. The name and logo are easy to explain. First of all, Scala stands for SCalable LAnguage. Another translation: “Scala” means “staircase” in Italian. The logo is based on a particular staircase in one of the buildings of EPFL. Now we have had a decent introduction to Scala, we can start exploring the language itself. So what is Scala all about?

The inspiration for the Scala logo.

The inspiration for the Scala logo.


Read more · 11 minutes