| 
            plszax
          ( | digmax , | 
| digits ); | 
      Identical to plsxax, except that arguments are flags for z axis.
      See the description of plsxax for more detail.
    
digmax
          (PLINT
            Variable to set the maximum number of digits for the z axis.  If nonzero, the
            printed label will be switched to a floating-point
            representation when the number of digits exceeds
            
              .
          digmax
            
digits
          (PLINT
            Field digits value.  Currently, changing its value here has no
            effect since it is set only by plbox or  plbox3.  However,
            the user may obtain its value after a call to either of these functions by
            calling plgzax.
          
      Redacted form: plszax(digmax, digits)
    
This function is used in example 31.