Quote: user-defined functions in Excel avoid the definition/invocation distinction; live data at each invocation site

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[A user-defined function in Excel] involves no definition/invocation distinction. [For example, the F2C] function is … This function instance is populated with "live" data … . If there are many invocations of F2C … layout and formulae, but populated with different data. … [p. 172] As this example illustrates, in our design, … so that the user can view any number … rather than "call"; it avoids the here-today-and-gone-tomorrow implication …   Google-1   Google-2

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