{"id":353,"date":"2023-06-18T12:03:39","date_gmt":"2023-06-18T12:03:39","guid":{"rendered":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/?page_id=353"},"modified":"2023-06-18T12:12:40","modified_gmt":"2023-06-18T12:12:40","slug":"trace-tables","status":"publish","type":"page","link":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/trace-tables\/","title":{"rendered":"Trace Tables"},"content":{"rendered":"
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Trace Tables<\/h2>\n
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Trace Tables<\/h3>\n

Trace tables re used in software development and debugging to track the execution of a program and record the values of variables at each step. They provide a systematic way of understanding the flow and behavior of a program as it executes.<\/p>\n

Example Trace Table<\/strong><\/p>\n\n\n\n\n\n\n\n\n
Step<\/th>\nInstruction<\/th>\nVariable X<\/th>\nVariable Y<\/th>\nVariable Z<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nRead X<\/td>\n5<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
2<\/td>\nRead Y<\/td>\n10<\/td>\n3<\/td>\n–<\/td>\n<\/tr>\n
3<\/td>\nZ = X + Y<\/td>\n5<\/td>\n10<\/td>\n15<\/td>\n<\/tr>\n
4<\/td>\nPrint Z<\/td>\n–<\/td>\n–<\/td>\n15<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

In this example, each row represents a step or line of code executed in the program. The columns capture the following information:<\/p>\n