Welcome to the principle of Fourier. Now, by summing the triangular wave function, can be approximated from the principles and mechanisms of the Fourier series, we can understand intuitively explained. (The calculation does not only uses addition and subtraction and multiplication and fractions. Believe in the power of your own intuition, please end your relationship.) "trigonometric functions with expressed as the sum of. "This idea is the" land of mystery, "Egypt is likely to leave were obtained. Accompanied Napoleon's expedition to Egypt during the years 1801 - 1798, archaeological research carried out various mathematical. Take home to France to discover the Rosetta Stone at this time, Champollion, and then show it to age 12. Speaking of ancient Egypt, the priests bestowed the mysteries of the time, the Pythagorean 思I浮Kabemasu. Egypt is the wisdom of the "Pythagorean theorem" Knowing, "Principles of Fourier series," I can understand. Sure to cite the period of the Fourier series (series) increases the overall resolution. However, the Fourier series itself, the shape of the wave is not close. Only minor variation of the wave, it's just that close to the total. On behalf of the wave position, the amount of change in a limited period if they are watching as a wave. Appearance, rather than some form of determinism, but convergence is an agnostic does not require the recognition of objective truth. (If you explore the Fourier series of determinism, therefore, comes to Achilles and the tortoise in the head.) ※ Fourier series, you have what looks like a wave of interest, I will never know. Datte, with integral, has a total area of overlapping waves and waves. Never, differentiation, using the Temasen.