# 刘辉

### about 220 - about 280

点击照片看详细介绍

**刘辉** 中国古代数学家， 曾给*九章算术*作注，计算圆周率 π，精确到了小数点后第四位。

# 祖冲之

### 429 - 501

点击照片看详细介绍

**祖冲之** 中国古代数学家、天文学家，他计算圆周率 π，精确到了小数点后第七位， π 的近似值 ^{355}/_{113} 也是他提出来的，称为密率。

# 祖暅

### 450 - 520

**祖暅** 中国古代数学家，祖冲之之子，在计算体积的过程中提出了祖暅原理。

# Niels Henrik Abel

### 1802 - 1829

点击照片看详细介绍

In 1824 **Abel** proved the impossibility of solving algebraically the general equation of the fifth degree.

# Archimedes of Syracuse

### 287 BC - 212 BC

点击照片看详细介绍

**Archimedes** was the greatest mathematician of his age. His contributions in geometry revolutionised the subject and his methods anticipated the integral calculus 2,000 years before Newton and Leibniz. He was also a thoroughly practical man who invented a wide variety of machines including pulleys and the Archimidean screw pumping device.

# Jacob (Jacques) Bernoulli

### 1654 - 1705

点击照片看详细介绍

**Jacob Bernoulli** was a Swiss mathematician who was the first to use the term integral. He studied the catenary, the curve of a suspended string. He was an early user of polar coordinates and discovered the isochrone.

# Bernard Placidus Johann Nepomuk Bolzano

### 1781 - 1848

点击照片看详细介绍

**Bolzano** successfully freed calculus from the concept of the infinitesimal. He also gave examples of 1-1 correspondences between the elements of an infinite set and the elements of a proper subset.

# Georg Ferdinand Ludwig Philipp Cantor

### 1845 - 1918

点击照片看详细介绍

**Cantor** founded set theory and introduced the concept of infinite numbers with his discovery of cardinal numbers. He also advanced the study of trigonometric series.

# Augustin Louis Cauchy

### 1789 - 1857

点击照片看详细介绍

**Cauchy** pioneered the study of analysis, both real and complex, and the theory of permutation groups. He also researched in convergence and divergence of infinite series, differential equations, determinants, probability and mathematical physics.

# Jean Le Rond d'Alembert

### 1717 - 1783

点击照片看详细介绍

**Jean d'Alembert** was a a French mathematician who was a pioneer in the study of differential equations and their use of in physics. He studied the equilibrium and motion of fluids.

# Jean Gaston Darboux

### 1842 - 1917

点击照片看详细介绍

**Darboux** made important contributions to differential geometry and analysis and the Darboux integral is named after him.

# Julius Wilhelm Richard Dedekind

### 1831 - 1916

点击照片看详细介绍

**Dedekind**'s major contribution was a redefinition of irrational numbers in terms of Dedekind cuts. He introduced the notion of an ideal which is fundamental to ring theory.

# Ulisse Dini

### 1845 - 1918

点击照片看详细介绍

# Johann Peter Gustav Lejeune Dirichlet

### 1805 - 1859

点击照片看详细介绍

**Dirichlet** proved in 1826 that in any arithmetic progression with first term coprime to the difference there are infinitely many primes.

# Leonhard Euler

### 1707 - 1783

点击照片看详细介绍

**Leonhard Euler** was a Swiss mathematician who made enormous contibutions to a wide range of mathematics and physics including analytic geometry, trigonometry, geometry, calculus and number theory.

# Pierre de Fermat

### 1601 - 1665

点击照片看详细介绍

**Pierre de Fermat** was a French lawyer and government official most remembered for his work in number theory; in particular for Fermat's Last Theorem. He is also important in the foundations of the calculus.

# Jean Baptiste Joseph Fourier

### 1768 - 1830

点击照片看详细介绍

**Fourier** studied the mathematical theory of heat conduction. He established the partial differential equation governing heat diffusion and solved it by using infinite series of trigonometric functions.

# Guido Fubini

### 1879 - 1943

点击照片看详细介绍

# Johann Carl Friedrich Gauss

### 1777 - 1855

点击照片看详细介绍

**Gauss** worked in a wide variety of fields in both mathematics and physics incuding number theory, analysis, differential geometry, geodesy, magnetism, astronomy and optics. His work has had an immense influence in many areas.

# George Green

### 1793 - 1841

# Jacques Salomon Hadamard

### 1865 - 1963

点击照片看详细介绍

**Jacques Hadamard** was a French mathematician whose most important result is the prime number theorem which he proved in 1896. This states that the number of primes < *n* tends to infinity as fast as *n*/log_{ e} n.

# Otto Ludwig Hölder

### 1859 - 1937

点击照片看详细介绍

**Hölder** worked on the convergence of Fourier series and in 1884 he discovered the inequality now named after him. He became interested in group theory through Kronecker and Klein and proved the uniqueness of the factor groups in a composition series.

# Ernst Eduard Kummer

### 1810 - 1893

点击照片看详细介绍

**Kummer**'s main achievement was the extension of results about the integers to other integral domains by introducing the concept of an ideal.

# Joseph-Louis Lagrange

### 1736 - 1813

点击照片看详细介绍

**Lagrange** excelled in all fields of analysis and number theory and analytical and celestial mechanics.

# Henri Léon Lebesgue

### 1875 - 1941

点击照片看详细介绍

**Lebesgue** formulated the theory of measure in 1901 and the following year he gave the definition of the Lebesgue integral that generalises the notion of the Riemann integral.

# Gottfried Wilhelm von Leibniz

### 1646 - 1716

点击照片看详细介绍

**Gottfried Leibniz** was a German mathematician who developed the present day notation for the differential and integral calculus though he never thought of the derivative as a limit. His philosophy is also important and he invented an early calculating machine.

# Guillaume François Antoine Marquis de L'Hôpital

### 1661 - 1704

点击照片看详细介绍

**De L'Hôpital** was a French mathematician who wrote the first textbook on calculus, which consisted of the lectures of his teacher Johann Bernoulli.

# Rudolf Otto Sigismund Lipschitz

### 1832 - 1903

点击照片看详细介绍

**Lipschitz** is remembered for the "Lipschitz condition", an inequality that guarantees a unique solution to the differential equation *y*' = *f* (*x, y*).

# Colin Maclaurin

### 1698 - 1746

点击照片看详细介绍

**Colin Maclaurin** was a Scottish mathematican who published the first systematic exposition of Newton's methods, written as a reply to Berkeley's attack on the calculus for its lack of rigorous foundations.

# Sir Isaac Newton

### 1643 - 1727

点击照片看详细介绍

**Isaac Newton** was the greatest English mathematician of his generation. He laid the foundation for differential and integral calculus. His work on optics and gravitation make him one of the greatest scientists the world has known.

# Marc-Antoine Parseval des Chênes

### 1755 - 1836

# Giuseppe Peano

### 1858 - 1932

点击照片看详细介绍

**Peano** was the founder of symbolic logic and his interests centred on the foundations of mathematics and on the development of a formal logical language.

# Paul David Gustav du Bois-Reymond

### 1831 - 1889

点击照片看详细介绍

**Paul du Bois-Reymond** gave a continuous function whose Fourier series diverges at every point.

# Michel Rolle

### 1652 - 1719

**Michel Rolle** was a French mathematician best known for the so-called *Rolle's theorem*.

# Georg Friedrich Bernhard Riemann

### 1826 - 1866

点击照片看详细介绍

**Riemann**'s ideas concerning geometry of space had a profound effect on the development of modern theoretical physics. He clarified the notion of integral by defining what we now call the Riemann integral.

# James Stirling

### 1692 - 1770

**James Stirling** was a Scottish mathematician whose most important work *Methodus Differentialis * in 1730 is a treatise on infinite series, summation, interpolation and quadrature.

# George Gabriel Stokes

### 1819 - 1903

点击照片看详细介绍

**Stokes** established the science of hydrodynamics with his law of viscosity describing the velocity of a small sphere through a viscous fluid.

# Otto Stolz

### 1842 - 1905

点击照片看详细介绍

# Brook Taylor

### 1685 - 1731

点击照片看详细介绍

**Brook Taylor** was an English mathematician who added to mathematics a new branch now called the 'calculus of finite differences', invented integration by parts, and discovered the celebrated formula known as Taylor's expansion.

# John Wallis

### 1616 - 1703

点击照片看详细介绍

**John Wallis** was an English mathematician who built on Cavalieri's method of indivisibles to devise a method of interpolation. Using Kepler's concept of continuity he discovered methods to evaluate integrals.

# Karl Theodor Wilhelm Weierstrass

### 1815 - 1897

点击照片看详细介绍

**Weierstrass** is best known for his construction of the theory of complex functions by means of power series.