Definition of del in English:

del

noun dɛldel

Mathematics

An operator used in vector analysis.
〔数〕倒三角形，戴尔（矢量算子）（符号：∇）
del is defined as i∂/∂x + j∂/∂y + k∂/∂z, where i, j, and k are vectors directed respectively along the Cartesian axes x, y, and z

Origin

Early 20th century: abbreviation of delta¹, from the representation of the operator as an inverted capital delta.

Definition of del in US English:

del

noundel

Mathematics

An operator used in vector analysis. (Symbol: ∇).
〔数〕倒三角形，戴尔（矢量算子）（符号：∇）
del is defined as i∂/∂x + j∂/∂y + k∂/∂z, where i, j, and k are vectors directed respectively along the Cartesian axes x, y, and z

Origin

Early 20th century: abbreviation of delta, from the representation of the operator as an inverted capital delta.

单词	del
释义	Definition of del in English: del noun dɛldel Mathematics An operator used in vector analysis. 〔数〕倒三角形，戴尔（矢量算子）（符号：∇） del is defined as i∂/∂x + j∂/∂y + k∂/∂z, where i, j, and k are vectors directed respectively along the Cartesian axes x, y, and z Origin Early 20th century: abbreviation of delta¹, from the representation of the operator as an inverted capital delta. Definition of del in US English: del noundel Mathematics An operator used in vector analysis. (Symbol: ∇). 〔数〕倒三角形，戴尔（矢量算子）（符号：∇） del is defined as i∂/∂x + j∂/∂y + k∂/∂z, where i, j, and k are vectors directed respectively along the Cartesian axes x, y, and z Origin Early 20th century: abbreviation of delta, from the representation of the operator as an inverted capital delta.
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