Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #3 20060104 16:14:59
Re: A cubic...No, it can't be factored. The only real factor is a real number x~1.32. So any attempts to factor it would be futile. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #4 20060104 22:03:44
Re: A cubic...It has one real root, but I used the cubic formula: IPBLE: Increasing Performance By Lowering Expectations. #6 20060105 02:03:31
Re: A cubic...No. Do you REALLY want it? IPBLE: Increasing Performance By Lowering Expectations. #9 20060105 21:07:58
Re: A cubic...The roots of quadratic equation ax^2+bx+c: Last edited by krassi_holmz (20060105 21:08:31) IPBLE: Increasing Performance By Lowering Expectations. #10 20060105 21:09:13
Re: A cubic...Cubic equation: IPBLE: Increasing Performance By Lowering Expectations. #11 20060105 21:10:17
Re: A cubic...And quadric equation (useless): IPBLE: Increasing Performance By Lowering Expectations. #12 20060105 21:12:05
Re: A cubic...For you question we get: Last edited by krassi_holmz (20060105 21:12:44) IPBLE: Increasing Performance By Lowering Expectations. #13 20060105 21:13:30
Re: A cubic...Equations >4 are unsolvable exactin radicals. (Galoa) IPBLE: Increasing Performance By Lowering Expectations. #14 20060105 21:16:31
Re: A cubic...I am sure you could find this without using the cubic formula. Last edited by krisper (20060105 21:16:42) Humankind's inherent sense of right and wrong cannot be biologically explained. #15 20060105 21:25:50
Re: A cubic...this is the exact root!
IPBLE: Increasing Performance By Lowering Expectations. #17 20060106 21:21:40
Re: A cubic...Yes, I've read very much about Abel. IPBLE: Increasing Performance By Lowering Expectations. #18 20060106 21:23:49
Re: A cubic...The general quintic can be solved in terms of Jacobi theta functions, as was first done by Hermite in 1858. Kronecker subsequently obtained the same solution more simply, and Brioschi also derived the equation. IPBLE: Increasing Performance By Lowering Expectations. #20 20060109 04:30:07
Re: A cubic...That's why I prefer the approximated result. IPBLE: Increasing Performance By Lowering Expectations. 