Arrays and tables in indexed array formulas

Currently the RASON modeling language supports arrays with up to 2 dimensions. If you require a structure with more than 2 dimensions, you must use a table instead. Tables provide several advantages over arrays:

• Tables may have more than 2 dimensions
• A table result may be used in an indexed array formula
• A table may be sparse, whereas arrays are always dense
• Evaluating a table is generally less computationally expensive than evaluating an array with more than two dimensions

The example below shows how an indexed array formula is assigned to a table.

...
  "constraints": {
    "comment": "Demand satisfaction, capacity limits, and flow balance",
    "for(c in customers, p in products)": {
      "comment": "Ensure all customer demand is met",
      "d_con": {
        "formula": "sum(w_c_num[c,p,]) + sum(f_c_num[c,p,]) - demand[c,p]",
        "lower": 0,
        "finalValue": []
      }
    },
  },
...

Code snippet taken from the example, Using Sum Aggregate. Click RASON Examples -- Example Models using Arrays Loops and Tables to open.