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1 vote
1 answer
1k views

Is new object creation necessary with BigDecimal?

Problem description: I am running performance test of calculation of PI number with primitives and with BigDecimal class. Calculation of PI with primitives is around 5-6 times faster than the same ...
DevDio's user avatar
  • 257
1 vote
3 answers
517 views

Avoid numeric errors in Naive Bayes method

I am implementing the Naive Bayes method with Gaussian distribution. The problem that I have is that the variance used on the Gaussian curve (calculated from a training set) is REALLY small. They ...
lhahn's user avatar
  • 113
5 votes
2 answers
510 views

Trivially Sortable Encoding for Arbitrary-Precision Decimals

I'm looking for a reasonably(*) space-efficient way to encode arbitrary-precision decimals (e.g. BigDecimal), such that when sorting the bit-pattern of the encodings lexicographically, the numbers ...
Dexter's user avatar
  • 293
9 votes
5 answers
26k views

How to handle large numbers? [duplicate]

Well, I've just started doing puzzles and it's so annoying to see puzzles which are easy to do but also need to handle very large numbers. That's the problem. Say I have to deal with numbers like 10 ^...
0cool's user avatar
  • 91