numbers which we use everyday. note: you will notice that the 7 has a line through the middle of it. That was the way the Arabic 7 was originally written, and in Europe and certain other areas they still write the 7 that way (I remember my German teacher did). Also, in the military, they commonly write it that way. The nine has a kind of curly tail on it that has been reduced, for the most part nowadays, to a simple curve, but the logic involved still applies.
The document discusses the history and evolution of different number systems used by humans over time, from ancient Babylonian and Egyptian numerals to modern Hindu-Arabic numerals. It explains key concepts like natural numbers, integers, rational numbers, irrational numbers, real numbers, imaginary numbers, and complex numbers. The concept of zero, which represents nothing, was an important development that allowed for more advanced mathematics. Number systems provide a consistent way to represent quantities and solve problems.
The document discusses the history and development of Hindu-Arabic numerals. It originated in India in around 300 BC and was developed by a mathematician named al-Binuri. These numerals evolved and spread to the Middle East and Europe through Arab traders in the 10th century. Leonardo Fibonacci helped popularize the use of Hindu-Arabic numerals in Europe in the early 13th century through his book Liber Abaci, as they were more efficient than traditional Roman numerals. Today, the Hindu-Arabic numeral system with 10 symbols (0-9) is the most widely used numeral system globally.
numbers which we use everyday. note: you will notice that the 7 has a line through the middle of it. That was the way the Arabic 7 was originally written, and in Europe and certain other areas they still write the 7 that way (I remember my German teacher did). Also, in the military, they commonly write it that way. The nine has a kind of curly tail on it that has been reduced, for the most part nowadays, to a simple curve, but the logic involved still applies.
The document discusses the history and evolution of different number systems used by humans over time, from ancient Babylonian and Egyptian numerals to modern Hindu-Arabic numerals. It explains key concepts like natural numbers, integers, rational numbers, irrational numbers, real numbers, imaginary numbers, and complex numbers. The concept of zero, which represents nothing, was an important development that allowed for more advanced mathematics. Number systems provide a consistent way to represent quantities and solve problems.
The document discusses the history and development of Hindu-Arabic numerals. It originated in India in around 300 BC and was developed by a mathematician named al-Binuri. These numerals evolved and spread to the Middle East and Europe through Arab traders in the 10th century. Leonardo Fibonacci helped popularize the use of Hindu-Arabic numerals in Europe in the early 13th century through his book Liber Abaci, as they were more efficient than traditional Roman numerals. Today, the Hindu-Arabic numeral system with 10 symbols (0-9) is the most widely used numeral system globally.
To download -https://clk.ink/MS2T
this will lead to a google drive link./
its a ppt based on the topic no. system.
it covers all the basics of ninth class cbse.
This document discusses different number systems. It begins by explaining how early humans used basic counting systems before introducing concepts like zero, integers, rational and irrational numbers. It then defines different types of numbers like natural numbers, whole numbers, integers, rational numbers, irrational numbers and real numbers. The rest of the document explains different base systems for representing numbers, including decimal, binary, octal and hexadecimal systems. It provides examples of converting between decimal and binary representations.
The document discusses number systems. It begins by explaining how early humans counted items without a formal system by making marks or using objects to represent quantities. It then describes the development of number systems, starting with natural numbers, then extending to whole numbers with the inclusion of zero, and integers which allow for positive and negative numbers. Rational numbers are defined as any number that can be represented as a ratio of two integers. The key functions of learning number systems are outlined, including performing arithmetic operations on real numbers. Decimal representations of rational numbers are also discussed.
The numbers we use today originated from Arabic numerals, which were derived from earlier numeral systems used by Phoenician merchants. While the Arabs popularized these numerals, their foundations can be traced back even earlier. Remarkably, the structure of the Arabic numerals is based on the number of angles each symbol contains - for example, one angle for 1, two angles for 2, and so on, with zero symbolizing no angles. This reveals the simple but ingenious logic behind the Arabic numeral system.
The document provides an overview of number systems used by different civilizations and an introduction to basic number concepts:
- It discusses ancient number systems including the Egyptian base-12 and Babylonian base-60 systems, as well as modern systems like binary and decimal.
- Basic number types are defined such as integers, rational numbers, irrational numbers, and real numbers. Fractions and decimal expansions are also introduced.
- Famous mathematicians who contributed to the study and development of number systems throughout history are acknowledged.
В презентации информация по истории усадьбы, ее владельцах, а также фотографии. Может использоваться на уроках ИЗО, истории и краеведения Нижегородской области.
Автор: Петрухина Наталья Алексеевна (Русичка2010)
Название ОУ: Государственная специальная(коррекционная) школа VIII вида №657 Санкт - Петербурга
Должность автора: учитель русского языка
Презентация-тест по теме "Импрессионисты. Художники и их произведения", 9-11 ...Ekaterina
Автор: Куприна Евгения Владимировна (Евгения777)
Название ОУ: МОУ школа № 124 г.о. Самара
Должность автора: учитель МХК и истории изобразительного искусства
Автор: Чупров Леонид Александрович (Летадиан)
Название ОУ: МОУ СОШ №3 с. Камень-Рыболов Ханкайского района Приморского края
Должность автора: учитель истории, общ. и права
1. (1 класс) Учитель начальных классов МАОУ «Гимназия»: Елизарова Ирина Васильевна Г. Старая Русса Новгородской области История цифр 2 3 4 6 5 7 8 9 0 1
2. Цель: Узнать историю возникновения арабских цифр Основные задачи: Определить, как появились цифры Выяснить, как считали древние люди, которые не знали цифр. Собрать информацию о цифрах других народов Гипотеза : Углубить знания о математической науке.
3. Многие тысячи лет назад наши далекие предки жили небольшими племенами. Они бродили по лесам и полям, разыскивали себе пищу. Первобытные люди не знали счета. Их учителями была сама жизнь .
4. Сначала считали на пальцах. Когда пальцы на одной руке кончались, переходили на другую, а если на двух руках не хватало, переходили на ноги.
8. ۲ – 1 < – 10 < ۲ – 11 Цифры древних математиков, которые жили пять тысяч лет назад в Месопотамии.
9. А это египетские цифры от 1 до 10. Интересно, сколько времени тратили египетские школьники, чтобы изобразить 6 или 9? Зато для больших и огромных чисел египтяне придумали отдельные значки.
12. Римляне вместо цифр использовали всего 7 букв CM 900 XC 90 IX 9 DCCC 800 LXXX 80 VIII 8 DCC 700 LXX 70 VII 7 DC 600 LX 60 VI 6 D 500 L 50 V 5 CD 400 XL 40 IV 4 ССС 300 XXX 30 III 3 СС 200 XX 20 II 2 С 100 X 10 I 1
14. Самые удобные цифры – те, к которым мы привыкли – придумали в глубокой древности индийцы. Они же изобрели удивительную цифру – 0.
15. Арабский учёный Мухаммед ибн Муса аль-Хорезми (араб. ابو عبدالله محمد ابن موسى الخوارزمي ; отец Абдуллы, Мухаммед, сын Мусы, уроженец Хорезма), автор знаменитой Китаб аль-Джебр ва-ль-Мукабаля, от названия которой произошел термин «алгебра»
16. Потом индийские цифры немного видоизменили арабы. И с тех пор этими цифрами пользуется весь мир. Написание арабских цифр состояло из отрезков прямых линий, где количество углов соответствовало величине знака. Выглядели они приблизительно так: Название «арабские цифры» — дань исторической роли арабской культуры в математической науке.