Howtosignalprocessing
- What is difference between fixed point and floating-point?
- What is fixed point and floating-point in MATLAB?
- When should you use fixed point over floating-point?
What is difference between fixed point and floating-point?
In fixed point notation, there are a fixed number of digits after the decimal point, whereas floating point number allows for a varying number of digits after the decimal point. This representation has fixed number of bits for integer part and for fractional part.
What is fixed point and floating-point in MATLAB?
Within digital hardware, numbers are represented as either fixed-point or floating-point data types. For both of these data types, word sizes are fixed at a set number of bits. However, the dynamic range of fixed-point values is much less than floating-point values with equivalent word sizes.
When should you use fixed point over floating-point?
A fixed point number just means that there are a fixed number of digits after the decimal point. A floating point number allows for a varying number of digits after the decimal point. For example, if you have a way of storing numbers that requires exactly four digits after the decimal point, then it is fixed point.
