Latex in Blogger: Another Alternative

Last year, I shared about writing latex in Blogger using Watchmath. Sadly, the server has been offline for a very long time.  I have also shared  about a Free Online Latex generator at, a good alternative.

Latex in Blogger (Online Latex Generator) has a WYSIWYG environment. You just have to choose the math symbol and it will automatically generate the Latex code. To embed the code in Blogger, just copy the HTML code to your post (be sure that you paste in the HTML  window).

Aside from embedding code in HTML, also provides embed code s for XML, phpBB, Tiddlywiki, and WordPress.

Quarter in Review – The Most Popular Posts

It’s almost the end of the first quarter of 2012. It’s a very busy week, so no time to write this week. Anyway, in case you missed reading some articles, here are the most popular posts for this quarter.

The Most Popular Posts

  1. An Intriguing Number Pattern Problem
  2. Math and Multimedia Carnival 19
  3. Using Area to Prove the Arithmetic-Geometric Mean
  4. 500 Math Ebooks — Downloadable and Free
  5. Heart Graph for the Mathematically In Love
  6. The GeoGebra 4.0 Tutorials List
  7. The Microsoft Mathematics Tutorial Series
  8. Divisibility by 7 and its Proof
  9. Proof that log 2 is an irrational number
  10. Using Latex in Gmail
  11. The Mathematics of Leap Years Explained
  12. Constructing Open-ended Math Problems
  13. Proof by Contradiction: Knights and Liars
  14. Microsoft Mathematics Tutorial 1 – The User Interface
  15. Diagonals of a Parallelogram » Read more

A US President’s Proof of the Pythagorean Theorem

James Garfield, the 20th president of the United States, came up with an original proof of the Pythagorean Theorem in 1876 when he was still a Congressman. His proof was published in New England Journal of Education.

Pythagorean Theorem proof by President Garfield

Recall that the Pythagorean Theorem states that given a right triangle with sides a, b, and hypotenuse c, the following equation is always satisified:

a^2 + b^2 = c^2.

President Garfield’s proof is quite simple. We can do this in three steps:

  1. Find the area of figure above using the trapezoid
  2. Find the area of the same figure using the three triangles
  3. Equate the results in 1 and 2. » Read more
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