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lines changed Original file line number Diff line number Diff line change @@ -308,15 +308,15 @@ Sage 可以对许多函数进行微分和积分。
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如果我们将从 `a ` 到 `b ` 的区间分成 `n ` 步,
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使得 `h=\frac{b-a}{n} `,那么我们可以在表中记录此方法的信息。
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- ============== ======================= =====================
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- `x ` `y ` ` h \cdot f(x,y) `
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- ============== ======================= =====================
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- `a ` `c ` ` h \cdot f(a,c) `
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- `a+h ` `c+h\cdot f(a,c) ` ...
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- `a+2h ` ...
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+ ============== =============================== === =====================
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+ `x ` `y ` ` h \cdot f(x,y) `
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+ ============== =============================== === =====================
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+ `a ` `c ` ` h \cdot f(a,c) `
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+ `a+h ` `c+h \cdot f(a,c) ` ...
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+ `a+2h ` ...
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...
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- `b=a+nh ` ??? ...
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- ============== ======================= =====================
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+ `b=a+nh ` ???
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+ ============== =============================== === =====================
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我们的目标是逐行填满表中的所有空白,直到到达 ??? 条目,这就是欧拉法对 `y(b) ` 的近似值。
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