0 Members and 1 Guest are viewing this topic.

That I could understand but the cube root of -1 is -1 not imaginary

Quote from: syhprum on 14/09/2007 20:11:04That I could understand but the cube root of -1 is -1 not imaginaryThis is true, but did the programmer who programmed the calculator understand that?

ONE of the cube roots of -1 is REALThere are two others!! They are complex.There's plenty of links on google for this.Cubic equations have three roots and they are not necessarily real.A good calculator would be smart enough to point this out to you.