Update cheatsheet.fr.md

01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/04.stigmatism and conjugate-points/02.new-course-overview/cheatsheet.fr.md

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-title: 'nouveau cours : synthèse'
+title: Formation d'image et stigmatisme
+published : true
+visible : false
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-nouveau cours : synthèse
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+#### xxxx
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+#### 
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+![](ray-optics-spherical-refracting-surface-snell-law.jpg)
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+#### 
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+![](ray-optics-spherical-refracting-surface-non-stigmatism-paraxial-gauss-approximation_serieA_L1200.gif)
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+#### 
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+![](ray-optics-spherical-refracting-surface-stigmatism-paraxial-gauss-approximation_serieB_L1200_v2.gif)
+
+#### 
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+![](ray-optics-spherical-refracting-surface-stigmatism-paraxial-gauss-approximation_serieC_L1200.gif)
+
+#### 
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+![](ray-optics-spherical-refracting-surface-paraxial-gauss-conditions-approximation-serieD_L1200.gif)
+