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- HARFRQ - Defines the frequency range in a harmonic analysis.
 - /HBC - Determines how boundary condition symbols are displayed in a display window.
 - HBMAT - Writes an assembled global matrix in Harwell-Boeing format.
 - HBMOPT - Specifies solution options for a harmonic balance method (HBM) analysis.
 - /HEADER - Sets page and table heading print controls.
 - HELP - Displays help information for Mechanical APDL commands and element types.
 - HEMIOPT - Specifies options for Hemicube view factor calculation.
 - HFANG - Defines or displays spatial angles of a spherical radiation surface for sound radiation parameter calculations.
 - HFSYM - Indicates the presence of symmetry planes for the computation of acoustic fields in the near and far field domains (beyond the finite element region).
 - *HPROD - Performs a Hadamard vector product (C = A∘B).
 - HPTCREATE - Defines a hard point.
 - HPTDELETE - Deletes selected hardpoints.
 - HRCPLX - Computes and stores in the database the time-harmonic solution at a prescribed phase angle.
 - HREXP - Specifies the phase angle for the harmonic analysis expansion pass.
 - HROCEAN - Perform the harmonic ocean wave procedure (HOWP).
 - HROPT - Specifies harmonic analysis options.
 - HROUT - Specifies the harmonic analysis output options.