Mathematicians Of The Day

20th August

On this day in 1638 William Oughtred wrote about his slide rule invention to the instument maker Elias Allen:-
I have here sent you directions (as you requested me being at Twickenham) about the making of the two rulers. ... would gladly see one of [the two parts of the instrument] when it is finished: which yet I never have done.

Click on for a poster.

Quotation of the day

From Salomon Bochner
Mathematics is a form of poetry which transcends poetry in that it proclaims a truth; a form of reasoning which transcends reasoning in that it wants to bring about the truth it proclaims; a form of action, of ritual behaviour, which does not find fulfilment in the act but must proclaim and elaborate a poetic form of truth.
The Role of Mathematics in the Rise of Science