# Mathematics

### The 5 best universities in Spain where to study Mathematics

It is often said that Mathematics is the queen of all sciences. Thanks to the increase in the use of Big Data and advanced analytics in companies, the minimum grade of this degree has […]

Carlos Moreno

### Binomials theory

POLYNOMIALS: Binomials   Binomials are polynomials consist of two monomials separated by a plus (+) or a minus (-) sign.   Binomials operations are:   1.- Binomial squared: is equal to the square of the […]

Ignacio

### Variations theory

Variations   Variations is to group elements, when it matters the order, we do not take all the items and these can be repeated or not. Thus the variations may be:   Variations without repetition […]

Ignacio

### Permutations Theory

Permutations   Permutations are multiplicative events where the number of possibilities is decreasing and whether it is important the order of a permutation, it is an arrangement of a set of objects in a defined […]

Ignacio

### Divisibility theory

Divisibility   Divisibility is the property of an integer number to be divided by another, resulting an integer number. Where a and b, two integers numbers, we will say that “a” is a multiple of […]

Ignacio

### Combined Operations theory

Combined Operations   We call Combined Operations to those in which several arithmetic operations appear to be solved. To get the right result you need to follow some rules and take into account the priority […]

Ignacio

Radicals   Radicals are expressions with the form: Where n Є N and a Є R; provided that when a is negative, n must be odd. n=index; a=radicand; m=exponent.   A radical can be expressed […]

Ignacio

### Logarithms Theory

Logarithms   Definition of Logarithms: Be a positive real number non-zero and different to 1, and A another positive and non-zero number. It is called the logarithm of the number A in the base a, […]

Ignacio

### Fractions theory

Fractions   Definition of Fractions A fraction is the quotient of two integers a and b, which is represented as follows: b -> denominator, indicates the number of parties that has been split the unit. […]

Ignacio

### Matrices operations theory

Matrices additions and subtractions theory   The sum of two Matrices (Aij), (Bij) of the same dimension, is another matrix (Rij) of the same dimension and with generic term sij=aij+bij.   Therefore, to be able […]

Ignacio