# math

## Differential topology lectures ## Symmetries

There is a maxim in physics (rather in science), a necessary basic axiom and is that under a reproducible experiment it must give the same value wherever (place) and whenever […] ## Method of least squares

Some of you will ask, how are these universal constants that physicists put into the formulas? Simple, they are extracted based on experimentation. When one formulates a formula to explain […]

## Constrait parcial derivatives

Today I want to comment on a small and rapid mathematical method regarding the derivation (partial) of functions. We, the majority, are accustomed to seeing the radius of change of […] ## 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 […] ## Winds around the eye of a storm

Continuing “Saturdays are made for mathematics” and bearing in mind that the other time I talk to you about how false are the centrifugal forces and centripeta being a differential […]