What is a figure? A digit is a character system designed to record numbers. Numbers are only signs that describe specific numbers. Everything is simple. But what is a number? This is the main proposition of mathematics, which is used to compare, quantify and number objects. To indicate the numbers on the letter using numbers.
What is a number?
This is a question to which we receive an answer initially from parents, then from teachers in educational institutions. What is a number? And from the dictionary of Vladimir Dahl, you can find out that numbers are numerical indicators. They are represented by the symbols of numbers. We know only 10 digits: from zero to nine. From their combination, infinity is obtained. What are the numbers?
- Arab. We have been using such symbols for quite some time. They originated in Europe in the 10th century.
- Roman. They appeared five centuries before our era and were in use among the Etruscan tribes living on the Apennine Peninsula.
- Mayan numbers. Such signs were used for calculations on the calendar.
But in the modern world, a digit is not only a mathematical sign, and today there is even a digital television, and there is also a digital format.
What is a number?
We learned what a number is, but the concept of a number is still unknown. Numbers are abstract concepts that are used for the numerical functionality of any objects. They appeared in the society of primitive people. Already in those days there was a need for an account. Over time, the numbers were transformed and supplemented. As a result, they turned out to be the first mathematical proposition. What numbers are there?
- Natural. We get them in natural reckoning. Natural numbers are applied by us daily.
- Whole. We get them by combining natural numbers with many negative numbers and with zero. They are limited in addition, subtraction and multiplication, but not in division.
- Rational. They are most often displayed as fractions. Rational numbers are characterized by all four arithmetic operations: addition, multiplication, subtraction and division.
- Real is a set of rational numbers that are divided into algebraic and transcendental.
- Integrated. They are represented by the expansion of a large number of real numbers. They are in use in solving problems of hydrodynamics, elasticity theory, and quantum mechanics.
The difference between numbers and numbers
After we learn what a number is and what a number is, it's time to find out what the difference is between these two mathematical concepts:
- With numbers, you can carry out many mathematical operations, which is impossible to do with numbers.
- Compared to numbers, numbers are negative.
- There are a huge number of numbers, but ten numbers.
Besides mathematical differences, there are also linguistic differences. They mean situations when the word "figure" should be used, and when it is worth saying "number". In a dialogue where official data are mentioned, let’s say, statistical indicators, it’s appropriate to say the word “figure”. This concept is more used in numerology. Scientists believe that this sign can affect the fate of a person, since he is endowed with magical properties.
The word "number" is used when it is necessary to indicate the value, or when it comes to any calendar dates. In Russian, ordinal numbers are more often used.
Three-digit numbers
In numerology, three-digit numbers play an important role. What is their essence? In such signs, the last digit usually describes how a two-digit number manifests itself.
Now you know what these two concepts mean, as well as when to use them.