An irrotational flow means the velocity field is conservative, or equivalently the vorticity pseudovector field is zero:
2.
For an example in electromagnetism, while the electric field "'E "'is a vector field, the magnetic field "'B "'is a pseudovector field.
3.
From a general point of view, the various fields in ( 3-dimensional ) vector calculus are uniformly seen as being " k "-vector fields : scalar fields are 0-vector fields, vector fields are 1-vector fields, pseudovector fields are 2-vector fields, and pseudoscalar fields are 3-vector fields.
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