According to Wikipedia it was William Jones in A New Introduction to Mathematics.
William Jones
Pi was first used as a mathematical symbol by the mathematician William Jones in 1706.
It was the Welsh mathematician William Jones in 1706 and pi is the 16th letter of the Greek alphabet
No, mathematics does not need to be capitalized. As far as I'm aware, the only studies that need to be capitalized are languages.
The first line in a business letter that contains the current date and that is positioned just below the letterhead is the date of the letter.
$2.66 for a first class letter from the US to Ireland.
The current mathematics were first developed by the Arabs around 3,800 B.C. It is base 10 math because that is the number of fingers we have to count on.
Pi as a mathematical symbol was introduced by William Jones in 1706
In mathematics (in particular calculus), an arbitrarily small positive quantity is commonly denoted ε; see (ε, δ)-definition of limitIn mathematics, Hilbert introduced epsilon terms as an extension to first order logic; see epsilon calculus.In mathematics, the Levi-Civita symbol.In mathematics, to represent the dual numbers: a + bε, with ε2 = 0 and ε ≠ 0.In mathematics, sometimes used to denote the Heaviside step function.
The current First Class postage rate is 45 cents (since 22 January 2012).
It is the first letter of the Greek alphabet which can be used, in geometry or algebra, to represent angles. In probability it can be used to represent a Type I error.
The current First Class rate is 44 cents.