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Exercise 1198Calculus › Multivariable calculus › Vector calculusL1Added 3 Nov 2026

The curl

#curl#vector field#rotation

Statement

Compute ∇×F⃗\nabla\times\vec F for F⃗=(yz, xz, xy)\vec F=(yz,\,xz,\,xy).

Hint

∇×F⃗=(Ry−Qz, Pz−Rx, Qx−Py)\nabla\times\vec F=(R_y-Q_z,\,P_z-R_x,\,Q_x-P_y).

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Solution

Compute.
- Ry−Qz=x−x=0R_y-Q_z=x-x=0
- Pz−Rx=y−y=0P_z-R_x=y-y=0
- Qx−Py=z−z=0Q_x-P_y=z-z=0

Conclusion. ∇×F⃗=0⃗\nabla\times\vec F=\vec0: the field is irrotational. It is actually conservative with potential ϕ=xyz\phi=xyz.