The pascaline was the first mechanical calculator that worked by means of a series of wheels and gears . It was initially known as the “ arithmetic machine ”, later it was called the “ pascaline wheel ” and, finally, it got its name from pascaline. This mathematical device had the ability to add, subtract, although it did not do it directly, the machine was also capable of multiplying … Read more


The abacus is a square- shaped instrument that is made of wood and consists of ten different wires or strings that are placed in parallel . Each of these strings has ten balls that are mobile . It is an instrument that helps people to perform simple calculations and calculations. It was an instrument widely used in ancient times, and it was used to teach students simple mathematical operations , such as multiplying , dividing , adding and subtracting. Some historians believe that the abacus was the first … Read more

Hexadecimal system

The hexadecimal system is a type of positional numbering system that uses the number 16 as its base . Their numbers are represented by the first 10 digits of the decimal numbering, and the interval that goes from the number 10 to 15 are represented by the following letters of the alphabet from A – B – C – D – E and F. The use … Read more

Decimal system

The decimal numbering system is also known as the decimal system and consists of a positional numbering system . This positional system is a set of symbols and rules that allow us to form all the numbers that exist and that are valid. In the decimal system quantities can be represented using as arithmetic bases , powers of the number ten. Numbers Arabic or indo Arabic are the symbols used … Read more

Associative property

The associative property can be found within the area of algebra and can be applied to two different types of operations: addition and multiplication . This type of certainly mathematical property tells us that, when there are three or more figures in these operations, the result does not depend on the way in which the terms are placed or grouped. This means that, no matter how the different numbers are put … Read more

Distributive property

The distributive property It is a very deep mathematical principle that helps make mathematics work. It is the rule that allows you to extend the parentheses, so it is very important to understand if you want to be good at simplifying mathematical additions. It is a term widely used in the field of algebra. The distributive property is a … Read more

Binary system

The binary system or base 2 system is a numerical system that only uses two digits: 0 and 1. Computers work by means of a binary system, which means that they can store data and perform calculations using only zeros and ones . The term is also used to refer to any digital encoding and decoding system in which there are two exact possible states. In digital data memory, storage, processing and communications, the values ​​0, … Read more

Numerical systems

Just as the first forms of writing appeared long after the development of speech, the first efforts to create a graphical representation of numbers came long after people learned to count. Probably the oldest way of keeping track of a count was by means of a counting system that included the use of a series of physical objects such as pebbles or sticks . Judging from the habits … Read more

Real numbers

The real numbers are all those numbers that are included within the rational numbers . They can be positive , negative and include the number zero , as in the case of irrational numbers . These numbers can be written in different ways, some of them very simple, generally used in simple mathematical operations , and in more complex forms . This group of numbers also includes fractions of whole numbers that have non- zero numbers in their denominator . What are real numbers? Real numbers … Read more

Complex numbers

The complex numbers are those that form a group of digits resulting from the addition being performed between a real number and an imaginary number . It is important to know that the real number is the number that can be expressed by means of a whole number , for example, 5, 28, 21; and the imaginary number is the number whose square is in negative form. They are represented … Read more