Feb 19, 2017 · Depending on your Python version you must or should replace / with the explicit floor division operator // which is the appropriate here; it rounds down ensuring that your exponents remain entire numbers.

Nov 9, 2024 · Tried implementing Karatsuba multiplier for multiplying two binary numbers, the logic below works well for ...

Feb 14, 2022 · I found the Karatsuba algorithm (divide-and-conquer with reduced multiplications of about half width) for multiplying polynomials as below: reference. and tried to implement it in Python. However, I do not understand the final recursive steps and U+[V+W]x**(n/2)+Zx**n at the end. So I am clueless as to how to correct my codes.

Oct 19, 2016 · I can see the Karatsuba multiplication code in karatsuba3() not getting executed from any call where no number is longer than 2000 bits. I can see karatsuba3() not making directly recursive calls to karatsuba3(). –

Aug 25, 2015 · I'm trying to implement Karatsuba's Multiplication algorithm in Python Here is my code import math # Base ...

Mar 15, 2018 · I am trying to implement the recursive Karatsuba algorithm for multiplication of two polynomials (of the same degree). My code still doesn't work for polynomials with degree greater than 1. Can anyone explain to me what I am doing wrong in my function? It should work for even and also for odd numbers of coefficients.

Jun 4, 2016 · The better is Karatsuba coded the less the treshold operands size. I see in your code that you convert number to string to get digit count. that is very slow operation especially for big numbers use logarithms (constant binary to decadic digits ratio) and binary bit count instead. Look here for ideas on how to code Karatsuba faster (code is in C++)

Nov 3, 2011 · Karatsuba is a nice algorithm, and not too hard to program. If you're only doing it for fun, it's even not a bad idea to work in base 10 -- it slows you down terribly, but it slows down the naive implementation too, so you still have a basis for comparing the two methods.

Jun 2, 2012 · I'm trying to implement multiplication of large numbers using karatsuba technique. I'm stuck in a seg fault which I'm not able to get around. The program seems to be always dropping out after 3 or 4

Nov 11, 2022 · Tried implementing Karatsuba multiplier for multiplying two binary numbers, the logic below works well for unsigned numbers, but getting incorrect answer when I change one of the inputs to a negative. In the example below a=1010011111000000(equals -88.25) and b= 0001010001000000(equals 20.25).