Direc­tory tex-archive/macros/latex/contrib/readarray

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readar­ray – Read, store and re­call ar­ray-for­mat­ted data

The pack­age al­lows the user to in­put for­mat­ted data into el­e­ments of a 2-D or 3-D ar­ray and to re­call that data at will by in­di­vid­ual cell num­ber. The data can be but need not be nu­mer­i­cal in na­ture. It can be, for ex­am­ple, for­mat­ted text.
While the pack­age can be used for any ap­pli­ca­tion where in­dexed data is called for, the pack­age proves par­tic­u­larly use­ful when el­e­ments of mul­ti­ple ar­rays must be re­callable and dy­nam­i­cally com­bined at time of com­pi­la­tion, rather than in ad­vance.