Can one “compute” the square root of two? One can calculate using real or imaginary number types, but on can also calculate with expression types. Most modern programming languages have them these days. So one can also “compute” on objects that relate concepts to one another. For example a two objects of equal length joined at a right angle will form a distance of sqrt(2) relative to their lengths. The machine-readable encoding of these definitions and relationships form the basis of tools like wolframalpha.com.
Marcus
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