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Emmanuel Morand. One Hundred Interesting Mathematical Calculations, Number 9: Archive Entry From Brad DeLong's Webjournal. One Hundred Interesting Mathematical Calculations, Number 9 One Hundred Interesting Mathematical Calculations, Number 9: False Positives Suppose that we have a test for a disease that is 98% accurate: if one has the disease, the test comes back "yes" 98% of the time (and "no" 2% of the time), and if one does not have the disease, the test comes back "no" 98% of the time (and "yes" 2% of the time).

One Hundred Interesting Mathematical Calculations, Number 9: Archive Entry From Brad DeLong's Webjournal

Suppose further that 0.5% of people--one out of every two hundred--actually has the disease. Your test comes back "yes. " Kurt Gödel. Kurt Friedrich Gödel (/ˈkɜrt ɡɜrdəl/; German: [ˈkʊʁt ˈɡøːdəl] ( ); April 28, 1906 – January 14, 1978) was an Austrian, and later American, logician, mathematician, and philosopher.

Kurt Gödel

Considered with Aristotle and Gottlob Frege to be one of the most significant logicians in history, Gödel made an immense impact upon scientific and philosophical thinking in the 20th century, a time when others such as Bertrand Russell,[1] A. N. Whitehead,[1] and David Hilbert were pioneering the use of logic and set theory to understand the foundations of mathematics. Gödel published his two incompleteness theorems in 1931 when he was 25 years old, one year after finishing his doctorate at the University of Vienna. Les mathématiques avec Pascal. FIBONACCI. "...considering both the originality and power of his methods, and the importance of his results, we are abundantly justified in ranking Leonardo of Pisa as the greatest genius in the field of number theory who appeared between the time of Diophantus [4th century A.D.] and that of Fermat" [17th century] R.B.

FIBONACCI

McClenon [13]. [Numbers in square brackets refer to REFERENCES at the end of this article.] 1. The world of Fibonacci.