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Integers Integers are negative whole numbers, zero and positive whole numbers. They cannot be in fraction or decimals form. Negative whole numbers are Integers less than zero, i.e <0. Negative whole numbers are also numbers on the left from zero in the number line. Examples of negative whole numbers are; -1,-2,-3,-4,-5,-6 etc. Zero is a whole number which is neither positive nor positive. Zero is part of integers in the number line. Positive whole numbers are integers greater than 0, i.e, >0. Positive whole numbers are also numbers on the right side from zero in our numbers line. For example, +1,+2,+3,+4,+5 etc.Can be written with or without positive sign “+” for example 1,2,3,4,5 etc.   but negative whole numbers, negative sign “-” MUST be included. Integers are always represented on a number line at an equal interval, which is equal to one unit. Positive whole numbers contain both odd, even and prime numbers. Prime numbers are integers greater than 1 which are d...

A topology of numbers  Natural* Introduction  Topology is one of the most modern branches of mathematics and  its relationship with other areas of this science is fundamental.   The study of  topology focuses on qualitative properties and not on quantitative ones  of mathematical objects, its extensive development has given rise to different areas, such as topology: algebraic, differential, sets, geometric.   The present work belongs to the topology of sets.  In the bibliography the reader will be able to find sources for each of these topics.   The topology of a set  Any set can be given a structure of topological space.  To do this, it is enough to distinguish a family τ of subsets of X, whose  elements are given the name of open subsets of X. Such a family  must satisfy the following three properties:  a) the total space X and the empty set ∅ are in τ ;  b) the arbitrary union of elements in τ is als...

  The importance of mathematics in the daily life of children – and not so children .   Understanding the different disciplines that are grouped within the field of mathematics can be complicated. It is one of the most difficult and hated school subjects and has brought students of many generations upside down. Added to this difficulty is the fact that we currently have devices capable of performing mathematical calculations easily, quickly and efficiently. This makes students wonder (and ask us) why they should learn to perform these operations manually when there are machines that do it for us.   Understanding the practical applications that mathematics has in our daily lives is essential to understand and learn them in a much easier and more intuitive way. In addition, upon discovering their great practical utility, interest in them grows and, as a consequence, they are learned much better. And it is that mathematics is much more than numbers and operations. Thanks to ...

HOW TO LOSE WEIGHT FASTER. Losing weight permanently requires a lot of discipline and patience. Therefore, rely less on diets and better on a long-term balanced diet as well as a lot of exercise & sport in everyday life to lose weight  as healthily as possible.Nevertheless, are there goals for which you want timely and visible results? Our tips for losing weight quickly are suitable for this. If you stick to the following basic rules, you will not only lose weight but also get additional inspiration to change your habits in the long term: Reduce starch/simple carbohydrates! If you consume a lot of sugar and starch, your insulin levels will rise rapidly and drop just as quickly. Due to the carbohydrates, you have more appetite and it comes more often to food cravings. In addition, insulin ensures that more fat is stored in your body, which you then have to burn again. A low-carbohydrate diet, therefore, has the following advantages: It boosts your fat burning! It usually keeps y...

Basic Physical Quantities in measurement They cannot be obtained from any other  physical quantities. We've seven basics quantities according to the International system of Units (SI units). Basic physical quantities and their SI unit together with Symbol of units; Length  SI unit is metre (m). Mass  SI unit is kilogram (kg). Time  SI unit is second (s). Electric current  SI unit is ampere (A). Thermodynamic temperature  The SI unit is Kelvin (K). Luminous intensity  The SI unit is candela (K). Amount of substance  The SI unit is mole (mol).   The table below shows basic physical quantities ,  symbols and SI unit. Basic physical quantities SI unit SI symbol 1 Length metre m 2 Mass kilogram kg 3 Time second s 4 Electric current ampere a 5 Thermodynamic temperature Kelvin K 6 Luminous intensity candela k 7 Amount of substance mole mol  Other quantities that can be derived from basic physical quantities are ; Density, volume, Area, Wor...

How to prepare for a holiday [lead] If we normally travel to relax, why do we stress the days before? We tell you how to prepare  for the holidays and not get stressed in 5 steps: 1. Start several months in advance Foresight can be our great ally in this project, so as not to lose our temper at the last minute and take what the rest discard. The sooner we start, the more bargains we can find. Start by comparing flights, especially if you are not sure about the destination or the dates. In this way, you can buy tickets at a very cheap price. It is recommended to buy the tickets 40 or 60 days before the trip. Furthermore, if you look for flights at the beginning of the week, you will have higher offers than during the weekend, due to the principle of supply and demand. For hotels or accommodation, the same thing happens. There are thousands of offers for apartments, resorts, bed & breakfasts, etc. Choose the option that best suits your type of trip and  budget. We recommend ...