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A trace table is a technique used to test algorithms or computer programs for logic errors that occur while the algorithm or program executes. The trace table simulates the flow of execution. Statements are executed step by step, and the values of variables change as an assignment statement is executed.

The use of a trace table helps to track the values of the variables at each step, making it easier to debug and understand the algorithm.

There are two main reasons that trace tables are used. The first is to determine what an algorithm does by running through it to see what happens as the algorithm runs. The second is to test the logic of an algorithm in case there are errors that are not easily spotted.

Trace table - a technique used to test algorithms to make sure that no logical errors occur. Hand tracing or 'dry running' allows you to use a trace table to. see what code will do before you have to run it. find where errors in your code are.

When you hand-trace code or pseudocode, you write the names of the variables on a sheet of paper, mentally execute each step of the code, and update the variables. It is best to have the code written or printed on a sheet of paper. Use a marker, such as a paper clip, to mark the current line.

To create a trace table, map out all of the variables which change (not constants) and write them down in a column in a table. Each row will then store what assignments happen as the code is run. Reading through code and noting down values in a trace table is known as a dry run .

Trace tables are used to allow programmers to trace the value of variables as each line of code is executed. The values of the variables are displayed in a table and assist the programmer in identifying any potential errors.