Re: [R] Funky calculations

2022-02-01 Thread Rui Barradas
Hello, Like others have said, this is FAQ 7.31. Try (0.4 + 0.2 + 0 + 0.3 + 0 + 0.1) - 1 on both systems, on one of them it's not zero. Hope this helps, Rui Barradas Às 13:45 de 01/02/2022, Nathan Boeger escreveu: Hello, I found something strange and maybe I am going nuts but this does not

Re: [R] Funky calculations

2022-02-01 Thread Mark Fowler
Sorry, last post I meant not > 1 Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows From: Nathan Boeger<mailto:nboe...@gmail.com> Sent: Tuesday, February 1, 2022 12:28 PM To: r-help@r-project.org<mailto:r-help@r-project.org> Subject: [R] Funky ca

Re: [R] Funky calculations

2022-02-01 Thread Ivan Krylov
On Tue, 1 Feb 2022 20:45:40 +0700 Nathan Boeger wrote: > I found something strange and maybe I am going nuts but this does not > make sense: > > > (0.4 + 0.2 + 0 + 0.3 + 0 + 0.1) > 1 > [1] TRUE Unfortunately, this always happens when computers approximate real numbers with fractions in binar

Re: [R] Funky calculations

2022-02-01 Thread Kevin Thorpe
This looks like a version of FAQ 7.31. > On Feb 1, 2022, at 8:45 AM, Nathan Boeger wrote: > > [You don't often get email from nboe...@gmail.com. Learn why this is > important at http://aka.ms/LearnAboutSenderIdentification.] > > Hello, > > I found something strange and maybe I am going nuts b

[R] Funky calculations

2022-02-01 Thread Nathan Boeger
Hello, I found something strange and maybe I am going nuts but this does not make sense: > (0.4 + 0.2 + 0 + 0.3 + 0 + 0.1) > 1 [1] TRUE I tried it on my mac M1 (R v4.1.2) and my Linux box (R v4.0.4). If I use other values, it does not work (see below). It seems only that combination, granted I