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Math Forum » Discussions » Inactive » Historia-Matematica

Topic: [HM] Bombelli: Cube root of Complex Nos.
Replies: 8   Last Post: Feb 19, 2001 5:31 AM

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Heinz Lueneburg

Posts: 226
Registered: 12/3/04
Re: [HM] Bombelli: Cube root of Complex Nos.
Posted: Feb 16, 2001 6:11 AM
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Yesterday, I wrote
>
> "Numero sano" means integer. The latin "sanus" is already used
> by Leonardo Pisano in this sense. Also polynomial expressions
> are called "sano" by Bombelli to distinguish them from fractions
> with polynomial enumerators and denumerators. I have the vague
> feeling that Nunes uses the same word in the same sense. I shall
> try to figure it out.

In the meantime, I checked my excerpts from Nunes "Libro de algebra ..."
There the word sano occurs only once: ... ninguno sano entendimiento ... .
This means, of course, different things.

It should read "denominators" instead of "denumerators" above.

Regards, Heinz Lueneburg

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