plFree2dGrid: Free the memory associated with a 2-d grid allocated using plAlloc2dGrid.

`plFree2dGrid`: Free the memory associated with a 2-d grid allocated using `plAlloc2dGrid`.
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#### `plFree2dGrid`: Free the memory associated with a 2-d grid allocated using `plAlloc2dGrid`.

`plFree2dGrid (` | f,
| nx,
| ny`)`;

Frees a block of memory allocated using `plAlloc2dGrid`.

`f` (`PLFLT **`, input)

  PLFLT grid to be freed.

`nx, ny` (`PLINT`, input)

  Dimensions of grid to be freed.

This function is currently available in C, C++, perl and tk.

This function is used in examples 8, 9, 11, 14, 16, 20, 21, 22, 28, 30.

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