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Karim Belabas on Mon, 02 Sep 2024 17:43:31 +0200
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Re: How to show few decimal digits of a real number?
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- To: Georgi Guninski <gguninski@gmail.com>
- Subject: Re: How to show few decimal digits of a real number?
- From: Karim Belabas <Karim.Belabas@math.u-bordeaux.fr>
- Date: Mon, 2 Sep 2024 17:43:06 +0200
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* Georgi Guninski [2024-09-02 17:40]:
> I have real number A and want to show only few fractional digits,
> how to do it directly without floor/round?
>
> The following doesn't work:
> ? precision(Pi)
> %3 = 38
> ? precision(Pi,2)
> %4 = 3.141592653589793239
See ??printf
? printf("%.2f", Pi)
3.14
Cheers,
K.B.
--
Pr. Karim Belabas, U. Bordeaux, Vice-président en charge du Numérique
Institut de Mathématiques de Bordeaux UMR 5251 - (+33) 05 40 00 29 77
http://www.math.u-bordeaux.fr/~kbelabas/