Howtosignalprocessing
- Why does division take longer than multiplication?
- Is it faster to divide or multiply?
- Why is it easier to multiply than divide?
- Why is division so slow?
Why does division take longer than multiplication?
Division is slower than multiplication because there is no direct, parallel method for calculating it : Either there is an iteration, or hardware is copied to implement the iteration as cascaded (or pipelined) blocks. Save this answer.
Is it faster to divide or multiply?
Multiplication is faster than division. At university I was taught that division takes six times that of multiplication. The actual timings are architecture dependent but in general multiplication will never be slower or even as slow as division.
Why is it easier to multiply than divide?
On average multiplication requires fewer steps in the algorithm. For instance multiplying two three-digit numbers is quite easy but dividing even single digit numbers (e.g., 1/7) may require lots of iterations compared to input size.
Why is division so slow?
If you look at a divide function, it is essentially more complex than a multiply, so a divide takes more computer cycles to complete, and is therefore slower.
