Name

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      CHECKER

Purpose

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      Return a checker board pattern array of 0 and 1.

Category

---

Calling Sequence

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      checker, nx, ny, pat

Inputs

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      nx, ny = array size in x and y. in

Keyword Parameters

---

Outputs

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      pat = resulting array. out

Common Blocks

---

Notes

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      Note: an example 4 x 4 array:
            0 1 0 1
            1 0 1 0
            0 1 0 1
            1 0 1 0

Modification History

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      R. Sterner, 30 Dec, 1989
      R. Sterner, 2010 Apr 30 --- Converted arrays from () to [].
  Copyright (C) 1989, 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.