Which of the following statements is correct?

Question

BlackTom AI · Accepted Answer

Scripts and programs are better at dealing with nested loops than spreadsheets because programming languages provide explicit loop constructs, scope, and control flow that make nested iteration straightforward and maintainable.

1) Relevant knowledge points and concepts
- Nested loop: a loop placed inside another loop used to iterate over multi-dimensional data or to perform repeated operations where the inner loop completes for each iteration of the outer loop.
- Spreadsheet model: cell-based, formula-driven recalculation; lacks native structured for/while loop constructs (though you can simulate iteration by copying formulas, using helper columns/rows, or enabling iterative calculation).
- Scripting/programming model: explicit for/while loops, functions, arrays, and easier debugging and data structures to handle nested iteration.

2) Step-by-step reasoning
- In a script (e.g., Python, MATLAB), you write:
  for i in range(N):
    for j in range(M):
      do computation(i,j)
  This maps directly to nested loops, easy to read and modify.
- In a spreadsheet, an equivalent requires either:
  - A 2D grid of cells with formulas referencing row/column indices (tedious to set up and maintain), or
  - Complex use of array formulas, helper columns, or VBA macros (which effectively turns you back into scripting).
- Therefore for clarity, scalability, and control flow, scripts are superior for nested loops.

3) Calculations / intermediate steps
- No numerical calculation required; comparison is conceptual and about implementation complexity and maintainability.

4) Why the correct answer is correct
- Option c accurately states the practical truth: spreadsheets can simulate nested loops but are cumbersome; scripts and programs provide natural, robust constructs for nested iteration, better debugging, and reusability.

5) Why the other options are incorrect
- a) False: Excel’s standard trig functions (SIN, COS, TAN) interpret their arguments as radians, not degrees.
- b) Misleading/overly strict: while Excel’s trig functions expect radian input, you can supply degree values by converting with RADIANS(angle) or use helper functions — so the blanket phrasing “must have their arguments in radians” is not a helpful general statement.
- d) False: Many numerical methods from ENG1014 (iteration, root finding, matrix solves) can be implemented in spreadsheets using formulas, arrays, Solver, or macros.

Conclusion: The correct answer is c. This explanation confirms that scripts and programs are better suited for nested loops than spreadsheets.

Which of the following statements is correct?单项选择题

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