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Re: Reduction of Radicals

• To: mathgroup at smc.vnet.net
• Subject: [mg71931] Re: Reduction of Radicals
• From: José Carlos Santos <jcsantos at fc.up.pt>
• Date: Mon, 4 Dec 2006 06:39:16 -0500 (EST)
• References: <ekud3a$83u$1@smc.vnet.net>

dimitris wrote:

> Is there a particular reason why by default Mathematicas returns a
> complex number for the cube root of a negative number or it is a matter
> of choise?

Mathematica gives you the principal value of the cubic root function.
In the case of negative numbers, it turns out that it is not a real
number.

Best regards,

Jose Carlos Santos