# math

## 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 […]

## 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 is just a function that assigns each […]

## 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 […]