Hi Jabier, I'm not 100% sure, but you may consider to always use floating point numbers for the type of calculation you are doing, unless you are sure you want integer calculation. So then it becomes:
(4./3.) * (sqrt(2.) - 1.)
regards, Johan
On 1-7-2014 9:41, Jabiertxo Arraiza Cenoz wrote:
Thanks Nathan. I just read it in a book but dont remeber when necessary :(. And thanks for the operator precedence tip.
Cheers, Jabier.
El mar, 01-07-2014 a las 07:59 +1000, Nathan Hurst escribió:
On Mon, Jun 30, 2014 at 11:56:15PM +0200, Jabiertxo Arraiza Cenoz wrote:
Hi to all.
I try this in my debian calculator: "4 / 3 * (sqrt(2) - 1)" and return 0,55228475 in C++ return 0.414214
I want 0,55228475. Where i lost? I have the cmath header
4/3 = 1 because the type of both arguments is int. 4.0/3 fixes your problem. I would put (4./3) * sqrt() because operator precedence for divide is not always clear.
njh
Open source business process management suite built on Java and Eclipse Turn processes into business applications with Bonita BPM Community Edition Quickly connect people, data, and systems into organized workflows Winner of BOSSIE, CODIE, OW2 and Gartner awards http://p.sf.net/sfu/Bonitasoft
Inkscape-devel mailing list Inkscape-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/inkscape-devel