April 2017

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 […]

In my series of explaining a few functions of several variables, their analysis, which is included in the differential geometry, today I want to talk about something, in itself, little […]

Today, some media (sorry, spanish one), in small and without disturbing anyone, tell us that at Washington State University they have succeeded in creating a “negative mass”. But what is […]

Yesterday, if you remember, I told you that it was the tangential (unitary) vector to a curve or path, so today I will tell you how to calculate and that […]