:term:`CFOUR_SPHERICAL <CFOUR_SPHERICAL (CFOUR)>`
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      Specifies whether spherical harmonic (5d, 7f, 9g, etc.) or Cartesian (6d, 10f, 15g, etc.) basis functions are to be used. ON (= 1) uses spherical harmonics, OFF (= 0) uses Cartesians. **Psi4 Interface:** Keyword set according to basis design when :term:`BASIS <BASIS (MINTS)>` is used instead of :term:`CFOUR_BASIS <CFOUR_BASIS (CFOUR)>`  Keyword subject to translation from value of :term:`PUREAM <PUREAM (GLOBALS)>` unless set explicitly.

      * **Type**: :ref:`boolean <op_c_boolean>`
      * **Default**: true