A Brief History of Algebra
1596: Ludolf van Ceulen computes π to twenty decimal places using inscribed and circumscribed polygons.
1631: Thomas Harriot in a posthumous publication is the first to use symbols < and > to indicate "less than" and "greater than", respectively.
1685: Kowa Seki solves the general cubic equation, as well as some quartic and quintic equations.
1761: Johann Heinrich Lambert proves that π is irrational.
1789: Jurij Vega improves Machin's formula and computes π to 140 decimal places
1815: Siméon Denis Poisson carries out integrations along paths in the complex plane.
1900: David Hilbert publishes Hilbert's problems, a list of unsolved problems.
1949: John von Neumann computes π to 2,037 decimal places using ENIAC.
1961: Daniel Shanks and John Wrench compute π to 100,000 decimal places using an inverse-tangent identity and an IBM-7090 computer.
1973: Lotfi Zadeh founded the field of fuzzy logic.
1631: Thomas Harriot in a posthumous publication is the first to use symbols < and > to indicate "less than" and "greater than", respectively.
1685: Kowa Seki solves the general cubic equation, as well as some quartic and quintic equations.
1761: Johann Heinrich Lambert proves that π is irrational.
1789: Jurij Vega improves Machin's formula and computes π to 140 decimal places
1815: Siméon Denis Poisson carries out integrations along paths in the complex plane.
1900: David Hilbert publishes Hilbert's problems, a list of unsolved problems.
1949: John von Neumann computes π to 2,037 decimal places using ENIAC.
1961: Daniel Shanks and John Wrench compute π to 100,000 decimal places using an inverse-tangent identity and an IBM-7090 computer.
1973: Lotfi Zadeh founded the field of fuzzy logic.