3.999999999 returns 4

Asked Sep 02 '20 at 07:17

Active Sep 02 '20 at 07:40

Viewed 76 times

When I try the following in R, it returns 4

(i = 3.999999999)
#> [1] 4

^{Created on 2020-09-02 by the reprex package (v0.3.0)}

I was expecting it to return 3.999999999. Can someone explain why is it happening, is it due to floating point error?

Also, in the RStudio IDE, the variable is shown to have value 3.999999999, but 4 on the console.

asked Sep 02 '20 at 07:17

monte

2

To output the value to the screen the value is rounded. Please try `print(4-i)` – jogo Sep 02 '20 at 07:20
2

Run in the console `options(digits = 10)` and try again. – Ronak Shah Sep 02 '20 at 07:21
Does this answer your question? [Preventing R From Rounding](https://stackoverflow.com/questions/6669681/preventing-r-from-rounding) – leas Sep 02 '20 at 07:38

0 Answers0