Exam-style question
Try this first
What is the main cause of rounding error in a fixed-point representation?.
- A.There are not enough available bits to represent the value exactly
- B.The representation automatically changes binary digits into decimal digits
- C.The number has too many integer bits and no fractional bits
- D.Fixed-point representations cannot represent positive numbers
Model answer
What a good answer should say
- There are not enough available bits to represent the value exactly
Explanation
Why this works
A fixed-point value has a specified number of bits for its representation. If the required binary fraction cannot fit exactly in those bits, it has to be rounded and becomes inaccurate.
Common mistake
No common mistake is linked to this question yet.