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| i2xy | Convert (x,y)-coordinates to single-number indices and back. |
| mapping50khind240hsgenecodetcdf | mapping50khind240hsgenecodetcdf |
| mapping50khind240hsgenecodetdim | mapping50khind240hsgenecodetdim |
| xy2i | Convert (x,y)-coordinates to single-number indices and back. |