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nabla
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nabla
Physics
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数学
del operator, nabla
倒三角算符
算符符号∇。
Mathematics
nabla
= nabla operator
纳布拉算子,哈密顿算子,∇算子,拉普拉斯算子,梯度算子
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更新时间:2025/11/18 20:11:47