Показ дописів із міткою Про математику англійською. Показати всі дописи
Показ дописів із міткою Про математику англійською. Показати всі дописи

27 листопада 2016 р.

The mathematical secrets of Pascal’s triangle - Wajdi Mohamed Ratemi

Pascal's triangle is a number triangle with numbers arranged in staggered rows such that
 a_(nr)=(n!)/(r!(n-r)!)=(n; r),
(1)
where (n; r) is a binomial coefficient. The triangle was studied by B. Pascal, although it had been described centuries earlier by Chinese mathematician Yanghui (about 500 years earlier, in fact) and the Persian astronomer-poet Omar Khayyám. It is therefore known as the Yanghui triangle in China.

Logarithms, Explained

In mathematics, the logarithm is the inverse operation to exponentiation. That means the logarithm of a number is the exponent to which another fixed number, the base, must be raised to produce that number. In simple cases the logarithm counts factors in multiplication.

What is a vector? - David Huynh

A vector is a quantity or phenomenon that has two independent properties: magnitude and direction. The term also denotes the mathematical or geometrical representation of such a quantity.