Class TDiv_CF03
- java.lang.Object
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- de.tilman_neumann.jml.factor.cfrac.tdiv.TDiv_CF03
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- All Implemented Interfaces:
TDiv_CF
public class TDiv_CF03 extends Object implements TDiv_CF
Auxiliary factor algorithm to find smooth decompositions of Q's. Version 03: Uses divideAndRemainder() only instead of mod() followed by divideAndRemainder(). This makes sense only since the speed improvement of divideAndRemainder() achieved 2020-12-05.- Author:
- Tilman Neumann
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Constructor Summary
Constructors Constructor Description TDiv_CF03()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description StringgetName()voidinitialize(BigInteger N, double maxQRest)Initialize for a new N.voidinitialize(BigInteger kN, int primeBaseSize, int[] primesArray)Initialize this factorizer for a new k; in particular set the prime base to be used for trial division.AQPairtest(BigInteger A, BigInteger Q)Check if Q is smooth (factors completely over the prime base) or "sufficiently smooth" (factors almost over the prime base).
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Method Detail
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getName
public String getName()
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initialize
public void initialize(BigInteger N, double maxQRest)
Description copied from interface:TDiv_CFInitialize for a new N.- Specified by:
initializein interfaceTDiv_CF
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initialize
public void initialize(BigInteger kN, int primeBaseSize, int[] primesArray)
Description copied from interface:TDiv_CFInitialize this factorizer for a new k; in particular set the prime base to be used for trial division.- Specified by:
initializein interfaceTDiv_CFprimeBaseSize- the true prime base size (the arrays are preallocated with a bigger length)primesArray- prime base in ints
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test
public AQPair test(BigInteger A, BigInteger Q)
Description copied from interface:TDiv_CFCheck if Q is smooth (factors completely over the prime base) or "sufficiently smooth" (factors almost over the prime base).
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