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Maths symbols

Maths symbols. I_ Arithmetic symbols. II_ Plus and minus. III_ Multiplication. IV_ Symbols of Logic. V_ Union and Intersection. Time line of mathematics symbols . a *b for a x b a nd a ÷ b by Rahn. ab for multiplication. 1460. 1631. 1698.

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Maths symbols

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  1. Mathssymbols I_ Arithmetic symbols II_ Plusandminus III_ Multiplication IV_ Symbols of Logic V_ UnionandIntersection

  2. Time line of mathematics symbols a*b for a x b and a ÷ b byRahn ab formultiplication 1460 1631 1698 + and – (additionandsubstraction) byWidmann + and – (signs) and a x b byOughtred 1659 1544 a.bfor a x b and a:b fora ÷ b byLeibniz

  3. Arithmeticsymbols ByEda Bayrak and Ezgi Koçal…

  4. ArithmeticSymbols Arithmetic is the oldest and most elementary branch of mathematics, used by almost everyone, for tasks ranging from simple day-to-day counting to advanced science and business calculations.

  5. Plusandminus ByCharlotteandCélia…

  6. + & - • The plus and minus signs (+ and -) are mathematical symbols used to represent the notions of positive and negative as well as the operations of addition and subtraction.

  7. History JohannesWidmann François Viete Robert Recorde 1460-1498 1540-1603 1510-1558

  8. Andfrom these dates, plus and minus are used for all additions and substractions but alsofornegativeandpositivenumbers. a-b=c -b+a=c

  9. Multiplication By Eda Bayrak and Ezgi Koçal…

  10. Multiplication is the third basic operation of arithmetic. • ‘’ a × b or a • bora * b ‘’ All of themaresamemeaning.

  11. Gottfried Wilhelm Leibniz (1646-1716) William Oughtred(1574 –1660) Johann Rahn(1622-1676)

  12. History of Multiplication Methods of multiplication were documented in the  Egyptian, Greek, Indian Chinese civilizations.

  13. Symbols of Logic ByMünireBüyükgüllü, Sümeyye Nur Azman, RitaBarrocas…

  14. -LOGIC- • Math's logic is considered the science of reasoning and demonstration. Logic is especially important in mathematics and philosophy, but it is also used on our daily routine without even noticing.

  15. History of Logical Symbols George Boole 1815-1864

  16. Simple statements : p ‘’p is true’’ assertion ~p ‘’p is false’’ negation Ex.: p: Sun is a star ( T )~p: Sun isn’t a star ( F ) In conclusion two denies equals to an affirmation. Ex: ~(~p) = p . A simple statement is one that does not contain any other statement as a part. We will use the lower-case letters, p, q, r, ..., as symbols for simple statements.

  17. A truth table is a complete list of the possible truth values of a statement. A truth table is a mathematical tableused in logicspecifically in connection with Boolean algebra, boolean functions, and propositional calculus. .

  18. Compounds and connectives :

  19. UnionandIntersection ByBegüm Sarıdedeand Şeyma Edizarslan…

  20. George Cantor 1845-1918 John Venn 1834-1923

  21. VENN DIAGRAMS

  22. UNION Theunion of twosets is the set of elementswhichare in either set. Examples:{1, 2} ∪ {red, purple} ={1, 2, red, purple}{1, 2, green} ∪ {red, purple, green} ={1, 2, red, purple, green} {1, 2} ∪ {1, 2} = {1, 2} For Example: A=(1,2,3) and B=(3,4,5)AUB=(1,2,3,4,5)

  23. INTERSECTION Theintersection of twosets is the set of elementswhichare in bothsets. Examples: {1, 2} ∩ {red, purple} = ∅ {1, 2, green} ∩ {red, purple, green} = {green} {1, 2} ∩ {1, 2} = {1, 2} For Example: A=(1,2,3) and B=(3,4,5)A∩B=(3)

  24. You can havemoreinformationaboutArithmeticSymbols in : • Plus andminusmadebyCharlotteLaurentandCéliaLopes-Bernier • MultiplicationandArithmeticsSymbolsmadeby Eda Bayrak and Ezgi Koçal. • Symbol of LogicmadebyMünireBüyükgüllü, Sümeyye Nur Azman, RitaBarrocas. • Unionandintersectionby Begüm Sarıdedeand Şeyma Edizarslan.

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