Simplify documentation examples for `Extend` implementations.
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@ -717,13 +717,12 @@ where
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///
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/// # Example
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/// ```
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/// use nalgebra::{Dynamic, Matrix, MatrixMN, Matrix3};
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/// # use nalgebra::{DMatrix, Dynamic, Matrix, MatrixMN, Matrix3};
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///
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/// let data = vec![0, 1, 2, // column 1
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/// 3, 4, 5]; // column 2
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///
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/// let mut matrix : MatrixMN<_, Dynamic, Dynamic> =
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/// Matrix::from_vec_generic(Dynamic::new(3), Dynamic::new(2), data);
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/// let mut matrix = DMatrix::from_vec(3, 2, data);
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///
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/// matrix.extend(vec![6, 7, 8]); // column 3
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///
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@ -738,14 +737,14 @@ where
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/// `Matrix`.
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///
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/// ```should_panic
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/// # use nalgebra::{Dynamic, Matrix, MatrixMN, Matrix3, U3};
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/// # use nalgebra::{DMatrix, Dynamic, MatrixMN};
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/// let data = vec![0, 1, 2, // column 1
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/// 3, 4, 5]; // column 2
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///
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/// let mut matrix : MatrixMN<_, U3, Dynamic> =
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/// Matrix::from_vec_generic(U3, Dynamic::new(2), data);
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/// let mut matrix = DMatrix::from_vec(3, 2, data);
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///
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/// matrix.extend(vec![6, 7, 8, 9]); // column 3
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/// // The following panics because the vec length is not a multiple of 3.
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/// matrix.extend(vec![6, 7, 8, 9]);
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/// ```
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fn extend<I: IntoIterator<Item=N>>(&mut self, iter: I) {
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self.data.extend(iter);
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@ -764,7 +763,7 @@ where
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///
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/// # Example
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/// ```
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/// use nalgebra::DVector;
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/// # use nalgebra::DVector;
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/// let mut vector = DVector::from_vec(3, vec![0, 1, 2]);
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/// vector.extend(vec![3, 4, 5]);
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/// assert!(vector.eq(&DVector::from_vec(6, vec![0, 1, 2, 3, 4, 5])));
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