# 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 […] ## Gradient

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 ## Quadratic forms

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 […]