This work is of interest to those people who find in mathematics the universal language with which they can explain the phenomena that occur in our environment and, of course, for those who see in it a door that will take them to the search for knowl..

This work is directed to all those people who begin the study of the theory of differential equations and have taken a course of differential and integral calculus. The exposition of the concepts and methods is done in a simple and clear way, without..

This book is aimed at professors and students of courses related to linear algebra at the engineering level. It brings together a series of activities and unique learning experiences compared to other texts in this area of knowledge, by incorpora..

This book describes some species of common macrohongos found at La Leona Station, Corcovado National Park, and related areas. Each one includes data such as its size, its location in the park, the distribution worldwide and the uses that have been co..

The purpose of this work is to go through the lives of some of the fascinating animals that share this planet with us, to understand a little how scientists classify them, to visit the environments where they are at ease, as well as to know t..

"In this book is narrated how they are, where they live, what they eat and what are the enemies of the Danta, the Tepezcuintle and the Saíno.There are also some suggestions for you to help protect these wonderful creatures. "..

In this book we will know about the places where they live, the food they eat and the enemies they have. We will also learn about the dangers that lie in wait for them, mainly caused by the contamination and exploitation so irrational that humans..

"The jaguar, the caucel and the puma are three cats of the American continent, which can disappear because of the mishandling that humans do of the environment.If we learn about their habits, their diet, their main enemies and join the effort..