There is little explanation of the true mathematics behind Euler's identity; the article presents an idea and then proceeds by discussing the various segments, in little detail, of the identity. No respect is given to why Euler's e and its importance, its significance, or why it came about. No detail was given regarding why Euler decided to raise e to the x or why the imaginary number, i, appears in the equation.
In actuality, this article has not provided any useful information, and especially not helped anyone truly 'understand the most beautiful equation in Mathematics'. However, if someone is looking for, in my opinion, a real explanation, I feel as though Kalid Azad's explanation of Euler's identity (http://betterexplained.com/articles/intuitive-understanding-...) is fairly thorough and insightful.
In actuality, this article has not provided any useful information, and especially not helped anyone truly 'understand the most beautiful equation in Mathematics'. However, if someone is looking for, in my opinion, a real explanation, I feel as though Kalid Azad's explanation of Euler's identity (http://betterexplained.com/articles/intuitive-understanding-...) is fairly thorough and insightful.