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Update textbook.en.md

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Claude Meny 6 years ago
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      10.brainstorming-innovative-courses/intercambio-curso-electromagnetismo/textbook.en.md

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10.brainstorming-innovative-courses/intercambio-curso-electromagnetismo/textbook.en.md

@ -186,16 +186,19 @@ ES : sistema de coordenadas cartesianas <br>
FR : système de coordonnées cartésiennes <br>
EN : Cartesian coordinate system
$`\nabla = \overrightarrow{e_x}\,\dfrac{\partial}{\partial x}+ \overrightarrow{e_y}\,\dfrac{\partial}{\partial y}
+\overrightarrow{e_z}\,\dfrac{\partial}{\partial z} `$
$`\nabla = \vec{e_x}\,\dfrac{\partial}{\partial x}+ \vec{e_y}\,\dfrac{\partial}{\partial y}
+\vec{e_z}\,\dfrac{\partial}{\partial z} `$
, or
$`\nabla = \overrightarrow{e_x}\,\dfrac{\partial}{\partial x}+\overrightarrow{e_y}\,\dfrac{\partial}{\partial y}
+\overrightarrow{e_z}\,\dfrac{\partial}{\partial z} `$ <br>
+\overrightarrow{e_z}\,\dfrac{\partial}{\partial z}`$
, or more
$`\overrightarrow{\nabla} = \overrightarrow{e_x}\,\dfrac{\partial}{\partial x}+\overrightarrow{e_y}\,\dfrac{\partial}{\partial y}
+\overrightarrow{e_z}\,\dfrac{\partial}{\partial z} `$
ES : operador nabla <br>
FR : opérateur nabla <br>
EN : nabla operator
$`\overrightarrow{grad}\;f=\nabla\;f`$, $`\overrightarrow{\nabla}\;f`$ better, no? <br>
$`\overrightarrow{grad}f=\nablaf`$, $`\overrightarrow{\nabla}f`$ better, no? <br>
ES : gradiente <br>
FR : gradient <br>
EN : gradient
@ -206,6 +209,13 @@ FR : divergence <br>
EN : divergence <br>
$`div\;\overrightarrow{U}=\lim_{V\leftrightarrow0}\;\dfrac{1}{V}\;\displaystyle\oiint_{S\leftrightarrow V}\overrightarrow{U}\cdot\overrightarrow{dS}`$
$`rot\times\overrightarrow{U}`$, but $`\overrightarrow{rot}\times\overrightarrow{U}`$ better, no? <br>
in some English texts : $`curl\times\overrightarrow{U}`$ <br>
$`\overrightarrow{\nabla}\times\overrightarrow{U}`$ or $`\overrightarrow{\nabla}\land\overrightarrow{U}`$ <br>
ES : rotacional de un vector <br>
FR : rotationnel d'un vecteur <br>
EN : rotation of a vector (= curl of a vector )
ES : escalar = número real o complexo + unidad de medida? <br>
FR : scalaire = nombre réel ou complexe + unité de mesure <br>
EN : scalar = real or complex number + measurement unit

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