Looking for that perfect summer (math) book?

With summer fast approaching (at least for those of us in the Northern Hemisphere), it is time to start thinking about your summer reading.  I know what you are thinking – so many math books, how can I choose the best one to enjoy at the beach, pool or mountain top?  Well, I have done all of the hard work for you.  Below are my favorite recommendations for your summer enjoyment!

Looking for a good biography?
  • The Man Who Loved Only Numbers by Paul Hoffman
  • Men of Mathematics by E.T. Bell
How about for those of you who enjoy an emotional rollercoaster?
  • A Mathematician’s Apology by G.H. Hardy
Is inspiration more to your liking?
  • Letters to a Young Mathematician by Ian Stewart
  • The Education of T.C. MITS by Lillian R. Lieber
How about a little mystery?
  • Great Feuds in Mathematics by Hal Hellman
  • Mathematical Scandals by Theoni Pappas
Or, are you looking for something more mathematical?
  • Journey through Genius: The Great Theorems of Mathematics by William Dunham
  • Euler:  The Master of Us All by William Dunham
Still looking for more?  How about some physics?
  • Einstein by Walter Isaacson
  • Einstein Defiant by Edmund Blair Bolles

If you are interested in learning more about these books, or if you would like to see many more suggestions, please visit my Suggested Books page on this website.

Enjoy!

Happy Birthday, Carl Friedrich Gauss!

Happy Birthday, Gauss!

Happy Birthday to Carl Friedrich Gauss!  Born on April 30, 1777 in Brunswick, Germany, Gauss is considered by most to be the greatest mathematician of all time.

Like many great mathematicians, Gauss showed his incredible mental abilities at a young age.  Before the age of three, Gauss taught himself to read by simply asking his parents for the pronunciations of the letters.  By the age of three, Gauss had a mastery of arithmetic as is often retold in the story of him finding a mistake in the arithmetic of his father’s payroll calculations.  During his teen years, Gauss was improving upon the proofs of NewtonEuler and Lagrange, determined to make the proofs more rigorous in nature.  In fact, this effort forever changed the way mathematical proofs are written.

However, despite all of these early achievements, Gauss was still considering a career in linguistics instead of mathematics.  Thankfully, for the sake of mathematics, this changed on March 30, 1796.  It is on this day that Gauss wrote in his diary that he had discovered a solution to one of the greatest unsolved problems of Euclidean geometry, the construction of regular polygons.  So impressed with the solution to this problem, Gauss decided to dedicate his life to mathematics.  It wasn’t long before Gauss would impress himself again.  On April 8, 1796, Gauss proved the Law of Quadratic Reciprocity.  His favorite of all the theorems, he is credited with at least a half-dozen proofs of it during his lifetime.

As Gauss’ life continued, so did his achievements.  Too many to mention specifically, Gauss made groundbreaking contributions in Number Theory, Differential Geometry, Statistics, the Method of Least Squares, Complex Analysis and non-Euclidean Geometry.  In 1801, Gauss published Disquisitiones Arithmeticae, considered by many to be one of the greatest achievements in all of mathematics.  Beyond mathematics, Gauss also rewrote physics with major contributions to the fields of electricity and magnetism.  As if that weren’t enough, Gauss was also a bit of an inventor.  He is credited with inventing the heliotrope to help with his job as a surveyor.  And, with colleague Wilhelm Weber, he was the first to invent the telegraph.

If there is to be one major criticism of Gauss, it is with his reluctance to publish his discoveries.  Gauss, ever the perfectionist, did not like to publish many of the results of his research, fearing that they were never perfect enough.  Or, as Gauss would describe it later in life, “pauca sed matura” (few, but ripe).  In fact, most of what Gauss discovered was not known until after his death when colleagues went through his mathematical diary.  Looking at this as a major travesty to mathematics, it is the opinion of the famous mathematician, historian and mathematical romantic E.T. Bell that Gauss’ reluctance to publish his discoveries set mathematics back at least 50 years.

If you are interested in learning more about Gauss, please check out some of these resources:

If you would like to see my mathematical collection, some of which is dedicated to Gauss, you can click here.

Happy Birthday, Leonhard Euler!

Happy Birthday!

Happy Birthday to Leonhard Euler!

What can I say about Leonhard Euler that hasn’t already been said?  Not much.  Born in Basel, Switzerland on April 15, 1707, Euler showed his mathematical talents early.  By the age of 7, Euler’s father hired a private mathematics tutor to work with him.  By the age of 13, Euler was attending lectures at the University of Basel.

At the age of 14, Euler began attending the University as a student.  It is here that he caught the eye of the great Johann Bernoulli (It seems that everything this man touched turned to gold!)  According to Euler, “I soon found an opportunity to be introduced to a famous professor Johann Bernoulli. … True, he was very busy and so refused flatly to give me private lessons; but he gave me much more valuable advice to start reading more difficult mathematical books on my own and to study them as diligently as I could; if I came across some obstacle or difficulty, I was given permission to visit him freely every Sunday afternoon and he kindly explained to me everything I could not understand …”

Once finished at the University, Euler spent most of his professional career in Russia at the St. Petersburg Academy of Sciences.  During his career, Euler made significant contributions to the fields of analytic geometry, geometry, number theory, trigonometry and calculus as well as in several areas of physics.

All was not smooth sailing for Euler, however.  In 1738, he lost one of his eyes in an accident from an experiment involving light diffraction.  In 1771, Euler contracted an illness that left him almost completely blind in his remaining eye.  However, despite being essentially blind, Euler still managed to produce hundreds of original mathematical papers.

By the time of his death in 1783, Euler is credited with over 900 mathematical publications.  He was so prolific a mathematician that the St. Petersburg Academy of Sciences continued to publish his work for nearly 50 years after his death!

If you are interested in reading more about Euler, check out one of these resources:

If you would like to see my mathematical collection, some of which is dedicated to Euler, you can click here.

Happy Birthday, Paul Erdos!

Happy Birthday!

March 26 is the birthday of one of the greatest mathematicians of all time, Paul Erdos.  Considering this fact, it should be easy to write some sort of tribute, right?  Well, maybe not.  When I started to write this post celebrating his birthday, I was very intimidated.  I was worried that, no matter what I wrote, I wouldn’t write enough to honor his memory.  I even wondered what I should write about.

Maybe I should write about the fact that he was gifted mathematician?  Erdos is said to rival Leonard Euler as the most prolific mathematician in history, having produced some 1500 mathematical papers, many with collaborators.

Maybe I should write about his quirks?  He could be known to appear at your doorstep, unannounced, for an extended visit, announcing that his “brain is open”.  Legend has it that he had trouble tying his shoes, buttering his toast and opening containers of orange juice.  He loved ping-pong.  Even his childhood was unique.

Maybe I should write about Erdos as the philanthropist?  Erdos had little need for money so most of the money he earned was donated … whether to charities, needy friends or to set up scholarships.  If there was someone, anywhere, who needed financial help, Erdos was there.

Or, maybe I should leave it up to a professional wordsmith?  In 1996, columnist Charles Krauthammer wrote a beautiful and touching tribute to Erdos, titled “Paul Erdos, Sweet Genius”.   I think I made the right choice.

If this isn’t enough and you are interested in learning more about Paul Erdos, you can read a more academic biography by clicking on this link.  If reading a book is more to your liking, here are two to consider.

  • The Man Who Loved Only Numbers by Paul Hoffman  (Click here to read my brief synopsis.)
  • My Brain is Open by Bruce Schechter  (Click here to read my brief synopsis.)

Happy Birthday, Paul!

Calling all Einstein fans!

For the first time ever, The Hebrew University of Jerusalem is releasing its collection of Albert Einstein‘s archives.  (Read the press release.)  Included are digital images of personal correspondences, speeches, fan mail, and most importantly, notebooks containing his groundbreaking scientific ideas.  These are the real deal … the images are so crisp that you can see the graininess of the pencil lead and the inconsistency of his fountain pen ink.  It is one of the most amazing things I have ever seen!

To begin the fun, click here:  http://alberteinstein.info/gallery/gallery.html