Commit bf408397 authored by Claude Meny's avatar Claude Meny

Update textbook.fr.md

parent 9f05256d
Pipeline #2975 failed with stage
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...@@ -255,7 +255,7 @@ $`=dx\;\overrightarrow{e_x}+dy\;\overrightarrow{e_y}+dz\;\overrightarrow{e_z}`$< ...@@ -255,7 +255,7 @@ $`=dx\;\overrightarrow{e_x}+dy\;\overrightarrow{e_y}+dz\;\overrightarrow{e_z}`$<
<br>$`||\overrightarrow{dl}||=\sqrt{dl_x^2+dl_y^2+dl_z^2}=\sqrt{dx^2+dy^2+dz^2}`$<br> <br>$`||\overrightarrow{dl}||=\sqrt{dl_x^2+dl_y^2+dl_z^2}=\sqrt{dx^2+dy^2+dz^2}`$<br>
<br>$`||\overrightarrow{dl}||=\sqrt{\overrightarrow{dl}\cdot\overrightarrow{dl}}`$ <br>$`||\overrightarrow{dl}||=\sqrt{\overrightarrow{dl}\cdot\overrightarrow{dl}}`$
$`=\left[(dl_x\;\overrightarrow{e_x}+dl_y\;\overrightarrow{e_y}+dl_z\;\overrightarrow{e_z})\cdot $`=\left[(dl_x\;\overrightarrow{e_x}+dl_y\;\overrightarrow{e_y}+dl_z\;\overrightarrow{e_z})\cdot
(dl_x\;\overrightarrow{e_x}\rigth.`$ (dl_x\;\overrightarrow{e_x}\right.`$
$`\left.+dl_y\;\overrightarrow{e_y}+dl_z\;\overrightarrow{e_z})\right]^{1/2}`$ $`\left.+dl_y\;\overrightarrow{e_y}+dl_z\;\overrightarrow{e_z})\right]^{1/2}`$
$`=\left[(dl_x)^2\;(\overrightarrow{e_x}\cdot\overrightarrow{e_x})\right.`$ $`=\left[(dl_x)^2\;(\overrightarrow{e_x}\cdot\overrightarrow{e_x})\right.`$
$`+(dl_y)^2\;(\overrightarrow{e_y}\cdot\overrightarrow{e_y})`$ $`+(dl_y)^2\;(\overrightarrow{e_y}\cdot\overrightarrow{e_y})`$
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