Session 5 :: 19th century

31.12.1379 · AE-5911231
31.12.2018 · AE481231

Order of the day

Repetitio :: Between Rennaissance and Age of Reason Questio :: What is a "representation" ? Exercitio I:: Binary counting. Presentatio I :: Baroque calculating mach...
31.12.2018 · AE481231

Question of the day

What is a representation ?
31.12.1379 · AE-5911231

Etymology of the word "represent"

represent (v.) late 14c., "to bring to mind by description," also "to symbolize, serve as a sign or symbol of; serve as the type or embodiment of;" from Latin repraesen...
31.12.2018 · AE481231

Mariam-Webster dict. definition of "representation"

The description or portrayal of someone or something in a particular way. The depiction of someone or something in a work of art. A picture, model, or other dep...
01.01.1801 · AE-1690101

Jacquard Loom (c. 1801)

Somebody willing to make a video of the Jacquard Loom at the TM next week ?
01.01.1822 · AE-1480101

Charles Babbage (1791 - 1871)

polymath, KH FRS, Victorian gentleman etc. mathematician, philosopher, inventor and mechanical engineer "father of the computer" author of "difference engine...
01.01.1822 · AE-1480101

Difference engine

01.01.1843 · AE-1270101

Augusta Ada King, Countess of Lovelace (1812 - 1852)

daughter of Lord Byron mother promoted Ada's interest in mathematics and logics, student od Augustus de Morgan associate of Charles Babbage ("Enchantress of Numbers...
01.01.1843 · AE-1270101

From Ada's (1843)notes to Menabrea article

Note A, p. 694 :: Again, it [the Analytical Engine] might act upon other things besides number, were objects found whose mutual fundamental relations could be expressed by those...
01.01.1843 · AE-1270101

From Ada's (1843)notes to Menabrea article

The distinctive characteristic of the Analytical Engine, and that which has rendered it possible to endow mechanism with such extensive faculties as bid fair to make this engine...
31.12.1853 · AE-1171231

George Boole (1815 - 1864)

another Victorian gentleman at 17 years of age "a thought struck him suddenly, which became the foundation of all his future discoveries" author of "Laws of Thou...
31.12.1853 · AE-1171231

An Investigation of the Laws of Thought on Which are Founded the Mathematical Theories of Logic and Probabilities

united algebra and logic replaced propositional form of Aristotle's logic to equation-like formulae and introduced "laws" which can solve them logical formulae ...
31.12.1853 · AE-1171231

Logic functions