Friday, April 14, 2017

Origin of word - Exponent


The word Exponent has come from the Latin word - Exoponere. Exo + ponere has two words - Exo means - out of whereas ponere means - place.In simple word, when the index is raised out of line, it is called exponent.


Here, 3 is raised from the normal line.

Michael Stifel ( 1487 - 1567) was the first mathematician who used the word Exponent in its mathematical term as written in his book - Arithmetica Integra

He wrote, "Est autem 3 exponens ipsius octonarij, & 5 est exponens 32 & 8 est exponens numeri
256" (Smith vol. 2, page 521).

The Latin translates roughly as

But 3 is the exponent of that same eight, and 5 is the exponent of 32, and 8 is the exponent of the number 256.

Here Michael is talking about the base 2
2^3 = 8 and 2^5 = 32 so as 2^8 = 256

Happy reading

Dr Rajesh Kumar Thakur

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Thursday, April 6, 2017

Origin of word - Logarithm



Log or Logarithm is used to simplify calculation. The word came into existence due to John Napier (1550- 1617).
It is the combination of two Greek words Logos - reason or ratio and artihmus - number.

You can use log table to simplify the calculation. The first log table was given by John Napier which was later modified by Henry Briggs

Happy reading

Dr Rajesh Kumar Thakur

Origin of Word - Hypotenuse


Hypotenuse is a common word used in Trignometry

It has come from the Greek word - Hypo means for under and tein - to stretch.

Simply hypotesuse is the line segment stretched under the right angled triangle.

Happy reading

Dr Rajesh Kumar Thakur

Origin of word - Diagonal



The word diagonal is derived from the Latin word - diagonus. Here Dia means to pass through and gonus means angle. In simple word, a diagonal is a line segment that joins the two angles of opposite vertices.

happy reading

DR Rajesh Kumar Thakur

Friday, March 24, 2017

origin of word - Geometry



Geometry is the branch of Mathematics that deals with the shape, size and position of a 2 dimension or 3 dimension figures. The area, volume , length of a shape can be found with the help of geometry.

Origin :- The word originates from the Ancient Greek word - geometria. Geo = Earth and Metrie = Measurement

Earlier the concept of geometry was related to field measurement that developed as an independent field and later many branches of geometry came into existence. Euclidean and Non Euclidean Geometry is the main branch of geometry.

Happy reading

Dr Rajesh Kumar Thakur


Sunday, March 12, 2017

Origin of Word - Perimeter



Perimeter of an object is the distance around its edge. In triangle, the perimeter is the sum of all its sides so as in quadrilateral it is the sum of all its four sides and so on.


(Courtesy :- https://en.wikipedia.org/wiki/Perimeter)



Origin :- Perimeter comes from the Greek word 'peri,' meaning around, and 'metron,' which means measure. Its first recorded usage was during the 15th century.

Happy Reading

Dr Rajesh Kumar Thakur

Friday, March 10, 2017

Origin of word Arithmetic



Orgin of Arithmetic

Arithmetic is the branch of Mathematics that deals with the numbers and their operations ( +, - , x , /). Egyptian or Babylonian were good at arithmetic and they used to solve problem with their own devised method.

Arithmetic is derived from the Greek word - Arithmos meaning Number.

Happy reading

Dr Rajesh Kumar Thakur

Wednesday, March 1, 2017

Origin of word - Algebra



The word Algebra came from the Arabic word - al-jabr that means reunion of broken part. It has been taken out from the title of Al- Khwarazmi's book al-jabr -wal - muquabala. Here is a page from Al-Khwārizmī's al-Kitāb al-muḫtaṣar fī ḥisāb al-ğabr wa-l-muqābala



Happy reading

Dr Rajesh Kumar Thakur

Origin of word Mathematics



The word mathematics comes from the Greek μάθημα (máthēma), which means "that which is learnt". Moreover, The word máthēma is derived from μανθάνω (manthano),which mean "to learn".

Aristotle defined mathematics as "the science of quantity",whereas C F Gauss defined mathematics as the queen of all sciences.

Happy reading

Dr Rajesh Kumar Thakur

Sunday, February 26, 2017

Origin of Triangle



Triangle :- A triangle is a closed figure with 3 sides. It is a kind of polygon where the sum of angles is 180

Origin:- The word triangle is taken from the Latin word triangulus meaning three angles or corners.

Happy reading

Dr Rajesh Kumar Thakur

Saturday, February 25, 2017

ANGLE


What is an angle?
An angle is the figure formed by two rays inclined with each other.


The word "angle" is derived from the Latin word "angulus" meaning "corner"


Dr Rajesh Kumar Thakur

Friday, February 24, 2017

Origin of FRACTION



Fraction

Fraction is a way of expressing a number that is a ratio of two integers.
Example :- a : b = a/b
Here 'a' is called Numerator and "b" is called denominator.

Indian used to write the fraction as we write it today but there were no line in between.
1/2 was written
1
2
but it was the Arabs who drew a line in between separating Numerator (top part) with Denominator (Bottom part).

There are instance in RigVeda where fraction has been used. अर्ध -Ardhya (1/2) , त्रिपाद tripad (3/4), पाद paad( ¼) , कुष्ठ kushtha (1/12), कला kala (1/16) are commonly seen in RigVeda. In Sulva sutra अंश ansh / भाग bhag has been used as triansh त्रिअंश or tribhag त्रि भाग for 1/3

Origin of word :-

The word fraction actually comes from the Latin "fractio" which means to break.

Happy reading

Dr Rajesh Kumar Thakur

origin of word Trignometry

What is Trigonometry?

A branch of mathematics that study about the relation between sides and angles of a right angled triangle. There are six relation that defines the Trigonometrical relation between sides and angles.

They are - sin, cos(ine), tan(gent), cot(angent), sec(ant) and cosec(ant).

The term "trigonometry" was derived from the Greek word "τριγωνομετρία" ("trigonometria"), meaning "triangle measuring", from "τρίγωνο" (triangle) plus "μετρεῖν" (to measure).


Happy reading

Dr Rajesh Kumar Thakur

origin of word surd

What is a surd?

When root of a non- negative rational number doesn’t provide an exact solution then the root is called a surd.
Example: - √3 , √5 ,etc.


Origin :-
Around 820 AD al-Khwarizmi called irrational numbers "'inaudible" ... this was later translated to the Latin surdus meaning deaf or mute.




Dr Rajesh Kumar Thakur

Origin of word - Exponent