# Math ## Unit tangent vector

As I want you to learn a bit of differential geometry, which is not as complicated as they are painted or how it sounds and since I imagine that you […] ## Nabla operator

If you remember yesterday I commented on the different ways of saying the same in mathematics speaking of the gradient and how physicists write it differently from the engineers. Today […] Mathematical notation is something that, often, complicates the formulas we see, mainly because according to who does that is the one that uses. Come on, that the notation of things […] ## Scalar and vector field

Today I want to comment on a very important physical concept from the mathematical point of view, the scalar field. A scalar field $latex \gamma (\overrightarrow{r})$ is just a function […] ## What is differential geometry, a brief introduction

Many times, I think, you have read me talk about differential geometry without, at bottom, understand what the heck I’m talking about, so the time has come to explain a […]

## Eigenvalues and eigenvectors A quadratic form, mathematically speaking, is an application of a vector space to real numbers (we are a function that takes us from a vector space – which does not […] ## Dimension of a vector space

Today, in my leisure time, I want to talk about a very silly nonsense: the dimension of a base in algebra. This concept is well known by all because it […] ## Algebraic structure

Today I want to talk about what an algebraic structure is. And why I want to talk about this strange thing ?, simple, because it is good to know the […] ## A brief about geometry

Today I want to talk about something that I tell you a lot, imagining that, you know what I mean: geometry. Normally I assume that this basic part of mathematics […]