From e6efeade15713ef0a5421ed5e5b036c8c319779f Mon Sep 17 00:00:00 2001 From: Claude Meny Date: Sun, 1 Dec 2019 10:16:44 +0100 Subject: [PATCH] Update textbook.en.md --- .../03.optical_path/02.optical-path-overview/textbook.en.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md index 58ddc5c89..84e4e4cd6 100644 --- a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md +++ b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/02.geometrical-optics-foundings/03.optical_path/02.optical-path-overview/textbook.en.md @@ -40,7 +40,7 @@ deux points, le **chemin optique** sera *toujours égal au temps de parcours de sur ce parcours divisé par la vitesse de la lumière dans le vide $c$* qui est une constante universelle de la nature : -**$`\mathrm{d}\delta\;=\;d\dfrac{ds}{c}`$** +**$`\mathrm{d}\delta\;=\;\dfrac{ds}{c}`$** $`\delta=\displaystyle\int_{S_{AB}}n\cdot\mathrm{d}s\;=\;\int_{S_{AB}}\dfrac{c}{v}\cdot\mathrm{d}s`$ $`\hspace{1cm}=c\;\int_{S_{AB}}\dfrac{\mathrm{d}s}{v}=\;c\;\tau`$