Page 46 - CT_AI_Class-5

Step 4 Multiply the number by the counter.
The Withings Smart Scale tracks weight, body fat, muscle,
Step 5 Say or write the answer. and bone, syncing with your phone to monitor health and

Step 6 Increase the counter by 1. ai display progress. It recognises up to 8 family members
and offers health tips.
Step 7 Repeat steps 4–6 until the counter reaches 10. lens

Step 8 End
DEBUGGING SIMPLE PROBLEMS
Comparison of The Three Types of Flow
Sometimes, algorithms do not give the expected results. This may happen because
Here is a comparison of the three types of flow:
of mistakes in the algorithm. These mistakes are called bugs. Finding and correcting

Type of Flow What It Does Real-Life Example these mistakes is called debugging.

Sequence Steps happen one by one in a Making hot chocolate, each Common Causes of Bugs
fixed order with no choices or step follows the last.
repeats. Bugs happen for many reasons. Here are the most common ones:

Selection A YES/NO question is asked Deciding what to wear,  A step is missing from the algorithm.
and the algorithm chooses a the choice depends on the  Steps are written in the wrong order.
path based on the answer. weather.
 A decision has the wrong condition (e.g., YES and NO are swapped).
Repetition A group of steps is repeated Practising multiplication
again and again until a tables, keep repeating until  The instructions are not clear.
condition is met. all 10 are done. Example:

Wrong Algorithm for Drinking Milk: Correct Algorithm:
21 st
Century #Critical Thinking 1. Drink milk. 1. Pour milk into a glass.
Skills
concept capsule
2. Pour milk into glass. 2. Drink the milk.
Write the signal that each colour of the traffic light gives:

Ask
AGENT
OrangeAI
Find out when the term bug was first used to mean a mistake.
Red
Study

Yellow
How to Debug: The Three-Step Method

Green Here is a simple three-step method for debugging any algorithm:

1. READ: Read every step carefully, as if you are a robot following instructions
for the first time.
Choose the correct type of flow of algorithm is used by traffic lights.
2. TRACE: Follow the steps on paper and write down what would happen at
a) Sequence b) Selection c) Repetition each stage.

3. FIX: Once you find the mistake, correct it and test the algorithm again.

44 Artificial Intelligence (CT & AI)-V