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HIDEV

       SUBROUTINE  HIDEV (Z1,ZE,Z2, NX,NE, PL2)
 C$    (Elliptical View)
 C$    Program to produce a perspective drawing of a single valued
 C$    function defined over elliptical coordinates in such a  way
 C$    as to exhibit  the arcs  corresponding to  constant XI  and
 C$    ETA.  Cartesian  coordinates are  related to  these by  the
 C$    following:
 C$
 C$    X = 0.5*COSH(XI)*COS(ETA)
 C$    Y = 0.5*SINH(XI)*SIN(ETA)
 C$
 C$    The arguments are:
 C$
 C$    (Z1,Z2)........Range of Z values
 C$    ZE(NX,NE)......Array of function values
 C$    NX.............Number of XI values
 C$    NE.............Number (=4*N+1) of ETA values
 C$    PL2............2-D pen movement subroutine, normally PL2CA
 C$
 C$    (04-FEB-82)