Spreadsheet 2000

This contrasts with the traditional spreadsheet model, where inputs, calculations and outputs are all placed into a single sheet and cannot be easily differentiated.

The formula is then copied into the other cells in C. A user looking at the sheet would simply see three columns of numbers, and has no way to differentiate which values are the inputs and which the outputs.

The user first creates two separate "sheetlettes" containing one column each, types the input numbers into them, and then connects the two together with the addition function, represented by an icon.

Since every step of a calculation was represented by input and output sheetlettes as well as the operator icons, S2K worksheets could become cluttered.

From that point on, the operator worked just like one of S2K's built-in functions, allowing the user to connect inputs and outputs to it as normal.

S2K worksheet; three input sheetlettes (blue) are being used to create several outputs (grey). The Join operation merges the 2×2 and 1×2 sheets into a single 3×2, while the A + B results in a single 2×2 grid by adding the 1×2 grid to both columns of the 2×2.