Trace Tables Flashcards

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What is a trace table in computer science?

A table that shows how variable values change step by step in an algorithm.

To test an algorithm by hand, check outputs, and find logic errors before running code.

A variable, an output, or a condition (True/False) that you want to track.

One step of the algorithm in order, including each pass of a loop.

The starting values of all variables and the chosen inputs.

The new value after the line runs, not the old one.

Add a column for the condition and write True or False at that step.

Repeat rows for each pass and record the loop counter or index each time.

When an output or print happens, write the value in an Output column.

Off-by-one errors, such as looping one time too many or too few.

Record the index used and the value at that index, or add columns for key items.

A trace table follows a program step by step; a truth table lists results for all True/False input combinations.