format  MTH_INIT_CURVEWORK (WORK_AREA, POINT_MAX)
 Input  WORK_AREA: Work area name
  POINT_MAX: Maximum number of input points
 Function  Defines the work area required to execute the curve calculation function in the user area.
  The pointer of this definition area is passed as a parameter to each curve calculation function.
  The reserved capacity is the maximum number of input points x 36 bytes.
 will be . The number of output coordinates is (in_n−1) * step + 1.
Please prepare an array of size above  . 

  format  Unit32 count = MTH_Curve2 (MthCurveWork * work, MthXy * in_aray,
  Unit32 in_n, Unit32 out_n, MthXy * out_aray)
 Input  work: Work area pointer
:  in_aray: Input coordinate array
:  in_n: Number of input coordinates
:  out_n: Number of output coordinates
 Output  out_aray: Output coordinate array
 Function value  count: Number of output coordinates of 2 or more 0: Parameter error
 Function  work specifies the work area secured by the MTH_INIT_CURVE macro.
.  in_aray specifies the input coordinate array pointer that passes the curve.
  in_n specifies the number of in_arays. Specify a value of 3 or greater.
  out_n specifies the number of out_arays. Specify a value of 2 or greater.
  out_aray is a pointer that receives the calculation result. An array of output coordinates that pass through the curve
 is returned .