by Vitosh
1w ago
So, what exactly is standard deviation? In simple terms, it’s a measure of how spread out the numbers in a dataset are from the mean or average. If the numbers are close to the mean, the standard deviation is small.… Read more ..read more
by Vitosh
1w ago
Here is an explanation of the Central Limit Theorem (CLT) in a few simple points: Explanation: The Central Limit Theorem states that the distribution of the sample means (averages) of a large number of samples from any population will be… Read more ..read more
by Vitosh
2M ago
Object oriented programming (OOP) in general is a huge topic, but I have decided to make a 30 minute video, based on the book Math for Programmers, as I liked the way it was explained there: Generally, in the video,… Read more ..read more
by Vitosh
3M ago
Talking about dot products in linear algebra can be really a subject of hours, but long story short this is probably the minimal knowledge you can live with: The dot product (inner product) is an operation on 2 vectors that… Read more ..read more
by Vitosh
4M ago
Excel with VBA is really a powerful tool. There should be some 5 more years, until Python really becomes a standard for the Excel people and I am not sure that it would actually happen that quickly. Anyway, working with… Read more ..read more
by Vitosh
5M ago
Plotting 2d and 3d vectors into a 3d space can be actually fun. Using mainly the code from Math for Programmers, I am presenting in this video an example of plotting 2d into 3d and back, using identity matrix and… Read more ..read more
by Vitosh
6M ago
In the last weeks, I have noted that one of my answers in StackOverflow has received some upvotes. Which was somehow strange, as people keep on telling me that #VBA is going to die and it is a “funny scripting… Read more ..read more
by Vitosh
7M ago
Working with Python and Excel is actually quite handy, especially if you are into it. In this article, you can see how to create Excel files, write data and formulas into them and read these. Pretty much simple CRUD methods.… Read more ..read more