## 1707 – Euler – bio

Leonhard Paul Euler was born in Basel, Switzerland in 1707 and was a mathematician and physicist. He made contributions in many areas of mathematics including: number theory, geometry, algebra, trigonometry, calculus and more. While Leibnitz was the first to use the word, “function” in a mathematical sense, it was Euler who defined it as an expression involving variables and constants and gave it the notation of f(x). He also introduced the use of the letter “e” to represent the natural logarithm, the letter “i” to represent the imaginary square root of negative one, and the Greek letter sigma to represent summations. Euler’s work with prime numbers created the foundation for later work by Gauss and Riemann on the zeta function. He solved a problem in graph theory known as “The Seven Bridges of Konigsberg” which helped lay the foundation for the field of topology

PRECURSOR:
-0300 Euclid
-0276 – Eratosthenes
1588 – Mersenne
1596 – Descartes
1601 – Fermat
1642 – Newton
1646 – Leibniz
1667 – Bernoulli (Johann)

CONCURRENT:
1690 – Goldbach
1700 – Bernoulli

SUBSEQUENT:
1736 – Lagrange
1777 – Gauss
1789 – Cauchy
1826 – Riemann
1845 – Cantor

### 6 Responses to “ 1707 – Euler – bio ”

1. […] equations of hydrodynamics in “Principes géneraux du mouvement des fluides” – Euler 1815 – work on surface wave propagation – Cauchy and […]

2. […] -0575 Pythagoras -0300 Euclid 1707 Euler 1752 – Legendre 1777 Gauss 1789 Cauchy 1792 – Lobachevsky 1802 – […]

3. […] 1761 – modular arithmetic studied by Euler. […]

4. […] 1707 – Euler 1777 – Gauss 1826 – Riemann Share and […]

5. […] to the power of n then having 1 added to it) it produces another prime number if n = a power of 2 1707 – Euler – showed that 2^32 (2 raised to the 32 power) fails as a prime and this disproved […]

6. […] PRECURSOR: 1623 – Pascal 1700 – Bernoulli 1702 – Bayes 1707 – Euler […]