java.math.BigInteger.gcd()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.math.BigInteger.gcd()方法的一些代码示例,展示了BigInteger.gcd()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。BigInteger.gcd()方法的具体详情如下:
包路径:java.math.BigInteger
类名称:BigInteger
方法名:gcd

BigInteger.gcd介绍

[英]Returns a BigInteger whose value is greatest common divisor of this and value. If this == 0 and value == 0 then zero is returned, otherwise the result is positive.
[中]返回一个BigInteger,其值是该和值的最大公约数。如果此==0且值==0,则返回零,否则结果为正。

代码示例

代码示例来源:origin: stackoverflow.com

private static int gcdThing(int a, int b) {
  BigInteger b1 = BigInteger.valueOf(a);
  BigInteger b2 = BigInteger.valueOf(b);
  BigInteger gcd = b1.gcd(b2);
  return gcd.intValue();
}

代码示例来源:origin: stackoverflow.com

private static int gcdThing(int a, int b) {
  BigInteger b1 = new BigInteger(""+a); // there's a better way to do this. I forget.
  BigInteger b2 = new BigInteger(""+b);
  BigInteger gcd = b1.gcd(b2);
  return gcd.intValue();
}

代码示例来源:origin: deeplearning4j/nd4j

/**
 * Normalize to coprime numerator and denominator.
 * Also copy a negative sign of the denominator to the numerator.
 */
protected void normalize() {
  /* compute greatest common divisor of numerator and denominator
   */
  final BigInteger g = a.gcd(b);
  if (g.compareTo(BigInteger.ONE) > 0) {
    a = a.divide(g);
    b = b.divide(g);
  }
  if (b.compareTo(BigInteger.ZERO) == -1) {
    a = a.negate();
    b = b.negate();
  }
} /* Rational.normalize */

代码示例来源:origin: org.apache.commons/commons-math3

/**
 * <p>
 * Reduce this <code>BigFraction</code> to its lowest terms.
 * </p>
 *
 * @return the reduced <code>BigFraction</code>. It doesn't change anything if
 *         the fraction can be reduced.
 */
public BigFraction reduce() {
  final BigInteger gcd = numerator.gcd(denominator);
  if (BigInteger.ONE.compareTo(gcd) < 0) {
    return new BigFraction(numerator.divide(gcd), denominator.divide(gcd));
  } else {
    return this;
  }
}

代码示例来源:origin: google/guava

public void testGCD() {
 for (int a : POSITIVE_INTEGER_CANDIDATES) {
  for (int b : POSITIVE_INTEGER_CANDIDATES) {
   assertEquals(valueOf(a).gcd(valueOf(b)), valueOf(IntMath.gcd(a, b)));
  }
 }
}

代码示例来源:origin: google/guava

public void testGCDExhaustive() {
 for (long a : POSITIVE_LONG_CANDIDATES) {
  for (long b : POSITIVE_LONG_CANDIDATES) {
   assertEquals(valueOf(a).gcd(valueOf(b)), valueOf(LongMath.gcd(a, b)));
  }
 }
}

代码示例来源:origin: org.apache.commons/commons-math3

final BigInteger gcd = num.gcd(den);
if (BigInteger.ONE.compareTo(gcd) < 0) {
  num = num.divide(gcd);

代码示例来源:origin: robovm/robovm

gcd = p.gcd(q);
p = p.divide(gcd);
q = q.divide(gcd);

代码示例来源:origin: stackoverflow.com

BigInteger gcd = numerator.gcd(denominator);
if (!gcd.equals(BigInteger.ONE)) {
  numerator = numerator.divide(gcd);

代码示例来源:origin: stackoverflow.com

BigInteger gcd = numerator.gcd(denominator);
this.numerator = numerator.divide(gcd);
this.denominator = denominator.divide(gcd);
tmpNumerator = tmpNumerator.multiply(BigInteger.valueOf(0x10000000000000L + mantissa));
BigInteger gcd = tmpNumerator.gcd(tmpDenominator);
numerator = tmpNumerator.divide(gcd);
denominator = tmpDenominator.divide(gcd);

代码示例来源:origin: i2p/i2p.i2p

ok = k.compareTo(pm1) == -1;
  ok = ok && k.compareTo(BigInteger.ONE) == 1;
  ok = ok && k.gcd(pm1).equals(BigInteger.ONE);
} while (!ok);

代码示例来源:origin: com.madgag.spongycastle/core

/**
 * Computes the greatest common divisor of the two specified integers
 *
 * @param u - first integer
 * @param v - second integer
 * @return gcd(a, b)
 */
public static int gcd(int u, int v)
{
  return BigInteger.valueOf(u).gcd(BigInteger.valueOf(v)).intValue();
}

代码示例来源:origin: org.solovyev/jscl

public Rational multiply(Rational rational) {
  BigInteger gcd = numerator.gcd(rational.denominator);
  BigInteger gcd2 = denominator.gcd(rational.numerator);
  return new Rational(numerator.divide(gcd).multiply(rational.numerator.divide(gcd2)), denominator.divide(gcd2).multiply(rational.denominator.divide(gcd)));
}

代码示例来源:origin: org.apache.commons/commons-math

/**
 * <p>
 * Reduce this <code>BigFraction</code> to its lowest terms.
 * </p>
 *
 * @return the reduced <code>BigFraction</code>. It doesn't change anything if
 *         the fraction can be reduced.
 */
public BigFraction reduce() {
  final BigInteger gcd = numerator.gcd(denominator);
  return new BigFraction(numerator.divide(gcd), denominator.divide(gcd));
}

代码示例来源:origin: org.apache.commons/math

/**
 * <p>
 * Reduce this <code>BigFraction</code> to its lowest terms.
 * </p>
 *
 * @return the reduced <code>BigFraction</code>. It doesn't change anything if
 *         the fraction can be reduced.
 */
public BigFraction reduce() {
  final BigInteger gcd = numerator.gcd(denominator);
  return new BigFraction(numerator.divide(gcd), denominator.divide(gcd));
}

代码示例来源:origin: org.solovyev/jscl

public Rational add(Rational rational) {
  BigInteger gcd = denominator.gcd(rational.denominator);
  BigInteger c = denominator.divide(gcd);
  BigInteger c2 = rational.denominator.divide(gcd);
  return new Rational(numerator.multiply(c2).add(rational.numerator.multiply(c)), denominator.multiply(c2)).reduce();
}

代码示例来源:origin: tec.uom/uom-se

@Override
public UnitConverter concatenate(UnitConverter converter) {
 if (!(converter instanceof RationalConverter))
  return super.concatenate(converter);
 RationalConverter that = (RationalConverter) converter;
 BigInteger newDividend = this.getDividend().multiply(that.getDividend());
 BigInteger newDivisor = this.getDivisor().multiply(that.getDivisor());
 BigInteger gcd = newDividend.gcd(newDivisor);
 newDividend = newDividend.divide(gcd);
 newDivisor = newDivisor.divide(gcd);
 return (newDividend.equals(BigInteger.ONE) && newDivisor.equals(BigInteger.ONE)) ? IDENTITY : new RationalConverter(newDividend, newDivisor);
}

代码示例来源:origin: tec.units/indriya

@Override
public UnitConverter concatenate(UnitConverter converter) {
 if (!(converter instanceof RationalConverter))
  return super.concatenate(converter);
 RationalConverter that = (RationalConverter) converter;
 BigInteger newDividend = this.getDividend().multiply(that.getDividend());
 BigInteger newDivisor = this.getDivisor().multiply(that.getDivisor());
 BigInteger gcd = newDividend.gcd(newDivisor);
 newDividend = newDividend.divide(gcd);
 newDivisor = newDivisor.divide(gcd);
 return (newDividend.equals(BigInteger.ONE) && newDivisor.equals(BigInteger.ONE)) ? IDENTITY : new RationalConverter(newDividend, newDivisor);
}

代码示例来源:origin: com.google.guava/guava-tests

public void testGCD() {
 for (int a : POSITIVE_INTEGER_CANDIDATES) {
  for (int b : POSITIVE_INTEGER_CANDIDATES) {
   assertEquals(valueOf(a).gcd(valueOf(b)), valueOf(IntMath.gcd(a, b)));
  }
 }
}

代码示例来源:origin: org.jruby/jruby-complete

public static RubyInteger f_gcd(ThreadContext context, RubyInteger x, RubyInteger y) {
  if (x instanceof RubyFixnum && y instanceof RubyFixnum && isLongMinValue((RubyFixnum) x))
    return RubyFixnum.newFixnum(context.runtime, i_gcd(x.getLongValue(), y.getLongValue()));
  BigInteger gcd = x.getBigIntegerValue().gcd(y.getBigIntegerValue());
  if (gcd.compareTo(RubyBignum.LONG_MAX) <= 0) { // gcd always positive
    return RubyFixnum.newFixnum(context.runtime, gcd.longValue());
  }
  return RubyBignum.newBignum(context.runtime, gcd);
}

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