N'hésitez pas à jeter un œil à une autre de mes applications scientifiques :



Parfois je fais aussi des choses stupides :



Ou pas :




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17/01/2024 7:35:26

Oakland, California, USA

Anonymous a écrit :


23/03/2023 10:49:26


Tim Murphy a écrit :

A truly fantastic calculator on so many levels.

Many, many thanks for this. Wonderful!

10/11/2022 9:25:35

Tokyo, Japan

Esa a écrit :

What a wonderful piece of software! I'm glad to see that there are people who actually remember to use computers for the purpose of computation - and help others do so as well!

11/03/2022 19:21:42


Matt a écrit :

just started to use Chalk and am fascinated by the choices you've made. However, the UI is very small on my large monitor. Is there any way you could add an option to scale the UI and output? I'd love to be able to double up the size of the UI. Many apps use cmd and -/+ to scale the window. I'm on a 4K monitor and virtually every other app I use scales to use the High-DPI output option. Thanks!

10/03/2022 3:14:30

Toronto, Canada

H B Acharya a écrit :

It takes a great deal of patient thought to make something simple and usable. I am a happy user.

Many years ago, as a student, I first learned about interval arithmetic, accuracy, and representation from the work of Bill Walster at Sun (before it got eaten by Oracle).

Your article explaining the shortcoming of modern calculators and your careful design of Chalk, reminded me of this. Merci beaucoup, not only for beautiful software, but also beautiful thoughts!

06/06/2020 16:35:02

France, Nancy

Jmi a écrit :

A gem, nothing,to add.
I have been roaming the web for such an application, very handy, very precisely designed, highly recommended for casual as well as pro users, thanks a lot Pierre for this beautiful piece of hard work !!!
No need to tell, I adopted it for my daily developper job.

27/04/2020 14:32:03

Toulouse, France

Laurent a écrit :

Chalk is a wonderful application. I use it every day. Very convenient.
Many thanks to Pierre who is very fast to take into account modifications / improvements suggestions.

21/03/2020 23:00:55

Santa Barbara, CA USA

Deborah a écrit :

Chalk is wonderful. Thank you, Pierre!

30/08/2019 18:55:25


Clark Dunson a écrit :

Hello Pierre;
My new company won't buy me Matlab, so I'm with Chalk. Love it.

25/04/2018 15:31:40


Martin a écrit :

Love Chalk, it is the desktop calculator I have been looking for!

20/03/2018 21:12:58

San Francisco, CA

Pratik a écrit :

Thanks for your hard work!

08/02/2018 22:02:50

Utilisateur a écrit :

Ça marche plutôt très bien !

27/04/2017 7:04:42


Jeff a écrit :

Pierre, this is very impressive.

14/04/2017 4:11:15

USA, Boston

Prashant a écrit :

Chalk is a great interface! I love that it can handle complex numbers and graphs

29/07/2013 23:24:22

France, Burgundy

Pierre Chatelier a écrit :

Livre d'or ouvert !
Visitor book open !


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