**Leonhard Euler**

**Work Cited**

Mathematician, Physicist

April 15, 1707

Died September 18,1783

Basel,Switzerland

5 Siblings

University of Basel

History

What was he famous for?

http://tiger.towson.edu/~gstiff1/eulerbio.htm

Timeline

Quotes

http://en.nkfu.com/leonhard-euler-quotes/

1720

1700

1785

he went to university (14)

1723

achieved his masters degree in philosphy

but he didnt enjoy it that much so he switched

his major to math

1726

Publishes "Constructio linearum isochrononarum in medio quocunque resistente", his first paper & finished his degree.

1727-30

1783

euler died on the 18th from a brain hemorrhage.

he was in the russian navy

in 1730 he became a professor in physics

at st. petersburg academy.

He discovered

a mathematical constant referred to as the number "e".

The number "e"

is important in

determining

interest calculation

and probablities

he published books and he taught math and science at the st. petersburg academy of sciences.

family

Euler married Katharina Gsnell and he had 13 children and only 5 children survived infancy. After his first wife died he remarried.

Base of natural logarithm

ln(x)=loge(x)

contributions to math

base of a natural logarithm

ln(x)=loge(x)

i

i=square root of -1

f(x)

sine&cosine

the euler method

used to solve 1st order differential equations with an intial starting value

eulers method approx.

solution equation

the euler method is very useful when solving a differantial that is difficult or impossible to do directly using integration.

eulers formula

it contains

what is thought

to be five most sig.

and fundamental

numbers in all

mathematics.

he did not learn

any math in primary

school because he did

not attend a very good

school, but since his

father was interested in

math his father taught him

at home. Leonhard read math books

on his own, but his dad also wanted

him to go to church like himself.