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将未装箱双精度向量的Vector转换为repa 的最简洁方法是Array U DIM2 Double什么?
Array U DIM2 Double
最明显的方法是将所有未装箱的向量连接成一个并将其传递给fromUnboxed,但这感觉有点笨拙。有更好的选择吗?