## Mathematicians Of The Day

### 17th August

On this day in 1655, William Oughtred wrote to John Wallis to praise his methods in Arithmetica Infinitorum. It was received too late to be included in the first edition, but was included in the 1695 second edition.

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#### Quotation of the day

##### From Pierre Fermat
And perhaps, posterity will thank me for having shown it that the ancients did not know everything.
Quoted in D M Burton, Elementary Number Theory (Boston 1976).