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

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Dr Rajesh Kumar Thakur

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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

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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.

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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.

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DR Rajesh Kumar Thakur