**1623-1662**

French mathematician, inventor, physicist, writer and philosopher

contributed to many areas of mathematics

French mathematician, inventor, physicist, writer and philosopher

contributed to many areas of mathematics

**Blaise Pascal**

he was born in Cermont-Ferrand

in 1631 Pascal with his family moved to Paris

he showed an amazing aptitude for mathematics and science

when he was 16 years old, he made a short treatise, called the "Mystic Hexagram" and sent it to Pére Mersenne in Paris

it is still known today as Pascal's theorem

Pascal's 1st serious work

of mathematics

Pascal's calculator

His "Treatise on the Arithmetical Triangle" of 1653 described

a convenient tabular

presentation for binomial coefficients,

now called Pascal's triangle

in the Pascal's triangle each number is the sum of the two directly above it

all at the same height and the same point of quiescent liquid, the pressure is equal in all directions, even if excess pressure is outside of its own weight effects on it

in static fluid the pressure spreads without reduce in all directions

Pascal's law

In 1662, Pascal's illness became more violent, and his emotional condition had severely worsened since his sister's death, which happened the previous year

he died on the morning of 18th August 1662

his last words were "May God never abandon me"

Pascal's last year

Pascal's theorem

It states that if a hexagon is inscribed

in a circle (or conic)

then the three intersection points of opposite sides lie on a line (called the Pascal line).

in 1639 his father was appointed to the king's commissioner of taxes

in 1642 in an effort to ease his father's calculations, Pascal not yet 19, constructed a mechanical calculator capable of addition and subtraction, called Pascal's calculator or the Pascaline

Pascal's triangle

Pascal's early years