“For contributions to mathematical knowledge”

TOP 10 __________________________________________________________________________________________

MATHEMATICIANS ON POSTAGE STAMPS

1. Philip Emeagwali

2. Muḥammad ibn Mūsā al-Khwārizmī 3. Pierre Simon Laplace

4. Xiong Qinglai 5. Gottfried Wilhelm Leibniz

6. Blaise Pascal 7. Srinivasa Ramanujan Iyengar

8. Pythagoras 9. Euclid 10. Ahmes

Philip Emeagwali Philip Emeagwali is the first living mathematician to be celebrated on postage stamps. Philip Emeagwali discovered that the partial differential equations of calculus could be solved across a global network of 65,536 computers. On the foreground were a system of partial differential equations of calculus that were at the mathematical core of the discovery made by Philip Emeagwali. Born: August 23, 1954, Akure, Nigeria More info: Cover story of the May 1990 issue of SIAM News (Society for Industrial and Applied Mathematics) Over 100 Lectures at:

emeagwali.com SoundCloud.com/emeagwali

YouTube.com/emeagwali

Muḥammad ibn Mūsā al-Khwārizmī The Father of Algebra. The computer term “algorithm” is a corruption of “al-Khwārizmī.” Born: Khwarezm Died: 850 AD, Baghdad, Iraq Books: The Compendious Book on Calculation by Completion and Balancing

Pierre Simon Laplace Contributed to Laplace differential equation. Born: 23 March 1749 in Beaumont-en-Auge, Normandy, France Died: 5 March 1827 in Paris, France

Xiong Qinglai Introduced modern mathematics into China

Born: October 20, 1893, China Died: February 3, 1969

Gottfried Wilhelm Leibniz

Contributed to the development of the differential and integral calculus.

Born: July 1, 1646, Leipzig, Germany Died: November 14, 1716, Hanover, Germany

Blaise Pascal

Contributed to the modern theory of probabilities. Born June 19, 1623, Clermont-Ferrand, France

Died August 19, 1662, Paris

Srinivasa Ramanujan Iyengar Contribution to number theory, infinite series, and continued fractions. Born: December 22, 1887, Erode, India Died: April 26, 1920, Chetput, Chennai, India Books: The lost notebook and other unpublished papers, Collected Papers, Notebooks

Pythagoras Contributed Pythagoras theorem. Born: 571 BC, Samos, Greece Died: Metapontum, Italy

Euclid No true portrait of Euclid exists but we know he lived in a predominately

black city in Africa. Euclid is “The Father of Geometry.” Euclid's text

“The Elements” is the second most reprinted book. It’s second to the

bible. Euclid never travelled outside Africa and it should be assumed that

he is an African that lived on the Nile Valley. Euclidean geometry is the

geometry studied in ancient Africa and modern high school.

Ahmes

Contributed “Ahmes Papyrus,” the oldest mathematical text. Lived during the Second Intermediate Period and the beginning of the Eighteenth Dynasty.

Died: 1620 BC, Egypt

FACT SHEET—150 Naira Stamp

NG009.06

Country/Post Nigeria

Date of Issue 18 January 2006

Primary Theme Science & Technology (Information

Technology)

Subject Supercomputer Genius – Philip Emeagwali

Width 24.5 mm

Height 40 mm

Denomination 150 NGN

Number in Set 2

Layout/Format Sheet of 50

Perforations 13 x 13

Stamp-Issuing

Authority

Nigerian Postal Service

Printer Nigerian Security Printing & Minting Co Ltd