Bertrand Benjamin
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224 lines
4.7 KiB
ReStructuredText
224 lines
4.7 KiB
ReStructuredText
Snippets pour Opytex
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####################
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On regroupe ici quelques snippets pour centraliser ce qui a déjà été produit avec Opytex.
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Fractions
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=========
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Simplifications de fractions
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----------------------------
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- Trouver le numérateur quand le dénominateur augmente
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.. code-block:: latex
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\Block{set a,b,ans,c = random_str("{a},{b},{a*c},{b*c}", conditions = ["{a} != {b}"], val_min = 2, val_max = 10).split(',')}%
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\begin{align*}
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\dfrac{\Var{a}}{\Var{b}} = \dfrac{\ldots}{\Var{c}}
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\end{align*}
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Solution
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\begin{align*}
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\dfrac{\Var{a}}{\Var{b}} = \dfrac{\Var{ans}}{\Var{c}}
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\end{align*}
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Ce qui produira
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.. code-block:: latex
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\begin{align*}
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\dfrac{2}{6} = \dfrac{\ldots}{48}
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\end{align*}
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Solution
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\begin{align*}
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\dfrac{2}{6} = \dfrac{16}{48}
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\end{align*}
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Et ce qui donne
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.. math::
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\begin{aligned}
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\dfrac{2}{6} = \dfrac{\ldots}{48}
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\end{aligned}
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Solution
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\begin{aligned}
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\dfrac{2}{6} = \dfrac{16}{48}
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\end{aligned}
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- Trouver le numérateur quand le dénominateur diminue
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.. code-block:: latex
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\Block{set a,b,ans,c = random_str("{a*c},{b*c},{a},{b}", conditions = ["{a} != {b}"], val_min = 2, val_max = 10).split(',')}%
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\begin{align*}
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\dfrac{\Var{a}}{\Var{b}} = \dfrac{\cdots}{\Var{c}}
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\end{align*}
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Solution
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\begin{align*}
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\dfrac{\Var{a}}{\Var{b}} = \dfrac{\Var{ans}}{\Var{c}}
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\end{align*}
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Explications
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\begin{align*}
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\Var{f.simplify().explain()|join('=')}
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\end{align*}
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Ce qui produira
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.. code-block:: latex
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\begin{align*}
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\dfrac{12}{9} = \dfrac{\cdots}{3}
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\end{align*}
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Solution
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\begin{align*}
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\dfrac{12}{9} = \dfrac{4}{3}
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\end{align*}
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Explications
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\begin{align*}
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\frac{ 12 }{ 9 }=\frac{ 4 \times 3 }{ 3 \times 3 }=\frac{ 4 }{ 3 }
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\end{align*}
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Et ce qui donne
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.. math::
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\begin{align*}
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\dfrac{12}{9} = \dfrac{\cdots}{3}
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\end{align*}
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Solution
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\begin{align*}
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\dfrac{12}{9} = \dfrac{4}{3}
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\end{align*}
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Explications
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\begin{align*}
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\frac{ 12 }{ 9 }=\frac{ 4 \times 3 }{ 3 \times 3 }=\frac{ 4 }{ 3 }
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\end{align*}
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Ajouts de fractions
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-------------------
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- Fraction avec le même dénominateur
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.. code-block:: latex
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\Block{set e = Expression.random("{a} / {b} + {c} / {b}", ["{b} > 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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- Fraction avec un denominateur multiple de l’autre
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.. code-block:: latex
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\Block{set e = Expression.random("{a} / {b} + {c} / {b*d}", ["{b} > 1","{d} > 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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- Fraction avec des dénominateurs premiers entre eux
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.. code-block:: latex
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\Block{set e = Expression.random("{a} / {b} + {c} / {d}", ["{b} > 1","{d} > 1", "gcd({b},{d}) == 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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- Une fraction et un entier
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.. code-block:: latex
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\Block{set e = Expression.random("{a} / {b} + {c}", ["{b} > 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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- Un entier et une fraction
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.. code-block:: latex
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\Block{set e = Expression.random("{c} + {a} / {b}", ["{b} > 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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Multiplications de fractions
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----------------------------
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- Une fraction et un entier
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.. code-block:: latex
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\Block{set e = Expression.random("{c} * {a} / {b}", ["{b} > 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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- Fraction avec des dénominateurs quelconques
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.. code-block:: latex
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\Block{set e = Expression.random("{a} / {b} * {c} / {d}", ["{b} > 1","{d} > 1"], val_min = 1)}
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\begin{align*}
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A = \Var{e}
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\end{align*}
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Solution
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\begin{align*}
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\Var{e.simplify().explain() | join('=')}
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\end{align*}
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