del

(redirected from Nabla operator)
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del

abbreviation for deletion.

DEL

Abbreviation for:
deletion
deltoid
delusion
Departmental Expenditure Limit
References in periodicals archive ?
Proof of the Corollary: The symmetry in q and t comes from a general property of the nabla operator, which is easy to show: nabla applied to any Schur function is symmetric in q and t.
In order to generalize equation (10) to quaternion version of Navier-Stokes equations (QNSE), we use first quaternion Nabla operator (12), and by noticing that [DELTA] [equivalent to] [nabla][nabla], we get:
In order to generalize equation (9) to biquaternion version (BQSE), we use first quaternion Nabla operator (5), and by noticing that [DELTA] [equivalent to] [nabla][nabla], we get