Alphonse Antonio de Sarasa

Mathematician, Deceased Person

1618 – 1667

63

Who was Alphonse Antonio de Sarasa?

Alphonse Antonio de Sarasa was a Jesuit mathematician who contributed to the understanding of logarithms, particularly as areas under a hyperbola.

Alphonse de Sarasa was born in 1618, in Nieuwpoort in Flanders. In 1632 he was admitted as a novice in Ghent. It was there that he worked alongside Gregoire de Saint-Vincent whose ideas he developed, exploited, and promulgated. According to Sommervogel, Alphonse de Sarasa also held academic positions in Antwerp and Brussels.

In 1649 Alphonse de Sarasa published Solutio problematis a R.P. Marino Mersenne Minimo propositi. This book was in response to Marin Mersenne’s pamphlet "Reflexiones Physico-mathematicae" which reviewed Saint-Vincent’s Opus Geometricum and posed this challenge:

Given three arbitrary magnitudes, rational or irrational, and given the logarithms of the two, to find the logarithm of the third geometrically.

R.P. Burn explains that the term logarithm was used differently in the seventeenth century. Logarithms were any arithmetic progression which corresponded to a geometric progression.

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Born
1618
Nieuwpoort, Belgium
Profession
Died
1667
City of Brussels

Submitted
on July 23, 2013

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