Talk:Quadratic formula

"in exact form" — what does it mean? Boris Tsirelson 20:35, 24 November 2010


 * It means non-approximate form—for example, LaTeX: \sqrt{7} is in exact form, but LaTeX: 2.64575 is an approximate value for that expression. I read through the section again and realised the "in exact form" note was unnecessary, as LaTeX: 3 and LaTeX: -2 are already in exact form. It was left over from the example I previously gave in the article, which had values like LaTeX: \sqrt{189} in the solution.


 * I hope that clarifies. Feel free to make any changes you want to the article; you're rather more qualified than I am when it comes to mathematics, and it's a wiki, after all. :-) —Thomas Larsen (talk) 21:17, 24 November 2010


 * Yes, that clarifies.


 * Yes, I did a small change before, since on that case I was sure. But when I am not sure, I rather ask. Boris Tsirelson 23:02, 24 November 2010


 * No problems.


 * I'm going to head off now and hopefully get some sleep tonight. Thanks for your contributions so far, and I hope everything works properly! —Thomas Larsen (talk) 23:07, 24 November 2010


 * Good night. Boris Tsirelson 23:25, 24 November 2010