[GH-ISSUE #164] [ Equation ] Choisir le format SCI pour l'affichage des très grands nombres #56

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opened 2026-05-06 13:14:54 +02:00 by BreizhHardware · 2 comments

BreizhHardware commented

2026-05-06 13:14:54 +02:00

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Originally created by @fmOOmf on GitHub (Feb 21, 2022).
Original GitHub issue: https://github.com/UpsilonNumworks/Upsilon/issues/164

Bonjour

L'issue #1918 (créée sur le github de Numworks-Epsilon) montre que, pour des équations simples, l'application [Equation] propose bien les bonnes solutions, mais quelquefois sous une forme TRES compliquée.

L'exemple de l'issue #1918 est l'équation du 2nd degré suivante : 1,9E-19*x² - 4,7E-31 = 0
Les solutions attendues sont : +/- sqrt(47/19)E-6,
L'application Equation propose la solution suivante :
+/-sqrt(2232500000000000000000000000000000000000000000000000000)/(950000000000000000000000000000000)
C'est bien la bonne solution mais écrite sous une forme non exploitable par un élève.
Le calcul du discriminant subit le même problème.

Amélioration proposée :
Passer en notation scientifique lorsque les nombres à afficher le nécessitent.

Bon courage à toute l'équipe.

Lien vers l'issue Epsilon #1918 : https://github.com/numworks/epsilon/issues/1918

Copies d'écran :

Originally created by @fmOOmf on GitHub (Feb 21, 2022). Original GitHub issue: https://github.com/UpsilonNumworks/Upsilon/issues/164 Bonjour L'issue #1918 (créée sur le github de Numworks-Epsilon) montre que, pour des équations simples, l'application [Equation] propose bien les bonnes solutions, mais quelquefois sous une forme TRES compliquée. L'exemple de l'issue #1918 est l'équation du 2nd degré suivante : 1,9E-19*x² - 4,7E-31 = 0 Les solutions attendues sont : +/- sqrt(47/19)E-6, L'application Equation propose la solution suivante : +/-sqrt(2232500000000000000000000000000000000000000000000000000)/(950000000000000000000000000000000) C'est bien la bonne solution mais écrite sous une forme non exploitable par un élève. Le calcul du discriminant subit le même problème. Amélioration proposée : Passer en notation scientifique lorsque les nombres à afficher le nécessitent. Bon courage à toute l'équipe. Lien vers l'issue Epsilon #1918 : [https://github.com/numworks/epsilon/issues/1918](url) Copies d'écran : ![image](https://user-images.githubusercontent.com/98671961/154934030-fd0bd9ab-a106-4f87-abf4-d6fe4c6fc6f2.png) ![image](https://user-images.githubusercontent.com/98671961/154934106-388d3bcb-269d-46d0-8000-b301f0af72d2.png)

BreizhHardware added the

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2026-05-06 13:14:54 +02:00

BreizhHardware commented

2026-05-06 13:14:55 +02:00

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@Lauryy06 commented on GitHub (Feb 21, 2022):

Bonne idée !

@Lauryy06 commented on GitHub (Feb 21, 2022): Bonne idée !

BreizhHardware commented

2026-05-06 13:14:55 +02:00

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@Overengined commented on GitHub (Feb 27, 2022):

Here's an english translation of the issue :

Hello
The issue numworks#1918 (created on the github of Numworks-Epsilon) shows that, for simple equations, the application [Equation] proposes the right solutions, but sometimes in a VERY complicated form.
The example of the numworks#1918 issue is the following 2nd degree equation: 1.9E-19*x² - 4.7E-31 = 0
The expected solutions are : +/- sqrt(47/19)E-6,
The Equation application proposes the following solution:
+/-sqrt(2232500000000000000000000000000000000000000000000000000)/(950000000000000000000000000000000)
It is indeed the right solution but written in a form not exploitable by a student.
The calculation of the discriminant suffers the same problem.
Suggested improvement:
Switch to scientific notation when the numbers to be displayed require it.
Good luck to the whole team.
Link to the Epsilon numworks#1918 issue: https://github.com/numworks/epsilon/issues/1918

@Overengined commented on GitHub (Feb 27, 2022): ### Here's an english translation of the issue : >Hello The issue numworks#1918 (created on the github of Numworks-Epsilon) shows that, for simple equations, the application [Equation] proposes the right solutions, but sometimes in a VERY complicated form. The example of the numworks#1918 issue is the following 2nd degree equation: 1.9E-19*x² - 4.7E-31 = 0 The expected solutions are : +/- sqrt(47/19)E-6, The Equation application proposes the following solution: +/-sqrt(2232500000000000000000000000000000000000000000000000000)/(950000000000000000000000000000000) It is indeed the right solution but written in a form not exploitable by a student. The calculation of the discriminant suffers the same problem. Suggested improvement: Switch to scientific notation when the numbers to be displayed require it. Good luck to the whole team. Link to the Epsilon numworks#1918 issue: https://github.com/numworks/epsilon/issues/1918

BreizhHardware referenced this issue

2026-05-06 13:16:21 +02:00

[PR #56] [CLOSED] [apps/reader] LaTeX functions #229