Name

---

      TRAPI

Purpose

---

      Trapizoidal integration for irregularly spaced values.

Category

---

Calling Sequence

---

      out = trapi(x, y)

Inputs

---

      x = Array of X values. in
      y = Array of function values at each X. in

Keyword Parameters

---

Keywords

---

        /CUMULATIVE means return the cumulative integral,
          else the total integral.
        /DOUBLE work in double precision.

Outputs

---

      out = Output value. out

Common Blocks

---

Notes

---

Modification History

---

      R. Sterner, 2004 May 21
  Copyright (C) 2004, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.