Libros de ciencias, página 118 de 2701

El sistema de los números complejos.- Funciones de variable compleja.- Derivaciones e integración de funciones de variable compleja.- Series complejas.- El teorema de los residuos.- Transformaciones conformes.- Ecuaciones derivadas parciales de segundo orden.- Transformada de Fourier.- Datos Biograficos.

El presente libro recoge una amplia colección de problemas relacionados con tres disciplinar muy importantes de las matemáticas: la teoría de variable compleja, las ecuaciones diferenciales ordinarias y la estadisticas.La experiencia docente nos ha enseñado que, en muchas ocasiones, los alumnos tiene problemas para conectar los conceptos aprendidos dentro de unidades tematicas aparentemente independientes entre si. Los problemas aqui recogidos engloban varios aspectos de la materia estudiada y hay que verlos dentro del contexto de la asignatura completa. El amplio espectro de temas tratados y los diferentes grados de dificultad de los ejercicios hacen de esta recopilacion una herramienta muy util para afianzar los conceptos teoricos expuestos en otros libros de esta misma coleccion. En ultimo termino, la utilidad de un problema resuelto depende de como el alumno se enfrenta a el. Lo importante no es conocer la solucion del mismo, sino realizar el esfuerzo de intentar varios caminos para alcanzar la solucion y comprender cual es el correcto y por que.

El presente libro corresponde a la materia enseñada en la asignatura con título "Ampliación de Variable Compleja" correspondiente al 2º ciclo del Grado de Matemáticas Fundamentales de la UNED. Pretende ser un segundo curso en la teoria de funciones de variable compleja y, por tanto, una continuacion del libro del mismo autor con titulo Teoria de Variable Compleja en esta misma coleccion.

Back on the earth after three spaceflights, Chris Hadfield's captivating memoir An Astronaut's Guide to Life on Earth reveals extraordinary stories from his life as an astronaut, and shows how to make the impossible a reality. This edition contains a new afterword.Colonel Chris Hadfield has spent decades training as an astronaut and has logged nearly 4,000 hours in space. During this time he has broken into a Space Station with a Swiss army knife, disposed of a live snake while piloting a plane, been temporarily blinded while clinging to the exterior of an orbiting spacecraft, and become a YouTube sensation with his performance of David Bowie's 'Space Oddity' in space. The secret to Chris Hadfield's success - and survival - is an unconventional philosophy he learned at NASA: prepare for the worst - and enjoy every moment of it.In his book, An Astronaut's Guide to Life on Earth, Chris Hadfield takes readers deep into his years of training and space exploration to show how to make the impossible possible. Through eye-opening, entertaining stories filled with the adrenaline of launch, the mesmerizing wonder of spacewalks and the measured, calm responses mandated by crises, he explains how conventional wisdom can get in the way of achievement - and happiness. His own extraordinary education in space has taught him some counter-intuitive lessons: don't visualize success, do care what others think, and always sweat the small stuff.

Wolfram George Schmid, W. George Schmid, Allan M. ArmitageIf you thought a shade garden was limited to ferns and hostas, this book might even lead you to desire more shade to grow the 7000 species and cultivars in 184 genera, some new to horticulture, others unjustly overlooked.

Volume 3 of an encyclopedic work covers 4666 species, from ferns on up. Full botanical information for each. 1913 edition, preferred by many to more recent revisions. Over 4000 total illustrations.

Volume 1 of an encyclopedic work covers 4666 species, ferns on up. Full botanical information for each. 1913 edition, preferred by many to more recent revisions. Total in set: over 4000 illustrations.

Volume 2 of an encyclopedic work covers 4666 species, from ferns on up. Full botanical information for each. 1913 edition, preferred by many to more recent revisions. Over 4000 total illustrations.

Today complex numbers have such widespread practical use--from electrical engineering to aeronautics--that few people would expect the story behind their derivation to be filled with adventure and enigma. In An Imaginary Tale, Paul Nahin tells the 2000-year-old history of one of mathematics' most elusive numbers, the square root of minus one, also known as i. He recreates the baffling mathematical problems that conjured it up, and the colorful characters who tried to solve them. In 1878, when two brothers stole a mathematical papyrus from the ancient Egyptian burial site in the Valley of Kings, they led scholars to the earliest known occurrence of the square root of a negative number. The papyrus offered a specific numerical example of how to calculate the volume of a truncated square pyramid, which implied the need for i. In the first century, the mathematician-engineer Heron of Alexandria encountered I in a separate project, but fudged the arithmetic; medieval mathematicians stumbled upon the concept while grappling with the meaning of negative numbers, but dismissed their square roots as nonsense.By the time of Descartes, a theoretical use for these elusive square roots--now called "imaginary numbers"--was suspected, but efforts to solve them led to intense, bitter debates. The notorious i finally won acceptance and was put to use in complex analysis and theoretical physics in Napoleonic times. Addressing readers with both a general and scholarly interest in mathematics, Nahin weaves into this narrative entertaining historical facts and mathematical discussions, including the application of complex numbers and functions to important problems, such as Kepler's laws of planetary motion and ac electrical circuits. This book can be read as an engaging history, almost a biography, of one of the most evasive and pervasive "numbers" in all of mathematics.

Winner of the 2023 Royal Society Trivedi Science Book Prize Discover the world as you ve never seen it before through the eyes of animals Immersive and mind blowing Peter Wohlleben author of The Hidden Life of TreesThe Earth teems with sights and textures sounds and vibrations smells and tastes electric and magnetic fields But every animal is enclosed within its own unique sensory bubble perceiving only a tiny sliver of this world In An Immense World Ed Yong coaxes us beyond the confines of our own senses welcoming us into previously unfathomable dimensions the world as it is truly perceived by other animals Showing us that in order to understand our world we don t need to travel to other places we need to see through other eyes A NEW YORK TIMES GUARDIAN ECONOMIST SPECTATOR TIMES LITERARY SUPPLEMENT and NEW STATESMAN BOOK OF THE YEAR Winner of 2023 Carnegie Medal for Excellence in Nonfiction Suffused with magic Siddhartha Mukherjee author of The Song of the Cell A book that prompts awe at the world around us Sunday TimesSunday Times bestseller July 2023