java.math.BigDecimal.negate()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.BigDecimal.negate()方法的一些代码示例，展示了BigDecimal.negate()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。BigDecimal.negate()方法的具体详情如下：
包路径：java.math.BigDecimal
类名称：BigDecimal
方法名：negate

BigDecimal.negate介绍

[英]Returns a new BigDecimal whose value is the -this. The scale of the result is the same as the scale of this.
[中]返回一个新的BigDecimal，其值为-this。结果的比例与此的比例相同。

代码示例

代码示例来源：origin: robovm/robovm

/**
 * Returns a {@code BigDecimal} whose value is the absolute value of
 * {@code this}. The result is rounded according to the passed context
 * {@code mc}.
 */
public BigDecimal abs(MathContext mc) {
  BigDecimal result = (signum() < 0) ? negate() : new BigDecimal(getUnscaledValue(), scale);
  result.inplaceRound(mc);
  return result;
}

代码示例来源：origin: BroadleafCommerce/BroadleafCommerce

/**
 * Returns the unit amount (e.g. .01 for US)
 * @param currency
 * @return
 */
public Money getUnitAmount(Money difference) {
  Currency currency = difference.getCurrency();
  BigDecimal divisor = new BigDecimal(Math.pow(10, currency.getDefaultFractionDigits()));
  BigDecimal unitAmount = new BigDecimal("1").divide(divisor);
  if (difference.lessThan(BigDecimal.ZERO)) {
    unitAmount = unitAmount.negate();
  }
  return new Money(unitAmount, currency);
}

代码示例来源：origin: BroadleafCommerce/BroadleafCommerce

/**
 * Returns the unit amount (e.g. .01 for US and all other 2 decimal currencies)
 *
 * @param difference
 * @return
 */
public static Money getUnitAmount(Money difference) {
  Currency currency = BroadleafCurrencyUtils.getCurrency(difference);
  BigDecimal divisor = new BigDecimal(Math.pow(10, currency.getDefaultFractionDigits()));
  BigDecimal unitAmount = new BigDecimal("1").divide(divisor);
  if (difference.lessThan(BigDecimal.ZERO)) {
    unitAmount = unitAmount.negate();
  }
  return new Money(unitAmount, currency);
}

代码示例来源：origin: deeplearning4j/nd4j

/**
 * The hyperbolic tangent.
 *
 * @param x The argument.
 * @return The tanh(x) = sinh(x)/cosh(x).
 */
static public BigDecimal tanh(final BigDecimal x) {
  if (x.compareTo(BigDecimal.ZERO) < 0) {
    return tanh(x.negate()).negate();
  } else if (x.compareTo(BigDecimal.ZERO) == 0) {
    return BigDecimal.ZERO;
  } else {
    BigDecimal xhighpr = scalePrec(x, 2);
    /* tanh(x) = (1-e^(-2x))/(1+e^(-2x)) .
     */
    BigDecimal exp2x = exp(xhighpr.multiply(new BigDecimal(-2)));
    /* The error in tanh x is err(x)/cosh^2(x).
     */
    double eps = 0.5 * x.ulp().doubleValue() / Math.pow(Math.cosh(x.doubleValue()), 2.0);
    MathContext mc = new MathContext(err2prec(Math.tanh(x.doubleValue()), eps));
    return BigDecimal.ONE.subtract(exp2x).divide(BigDecimal.ONE.add(exp2x), mc);
  }
} /* BigDecimalMath.tanh */

代码示例来源：origin: stackoverflow.com

private static final BigDecimal SQRT_DIG = new BigDecimal(150);
private static final BigDecimal SQRT_PRE = new BigDecimal(10).pow(SQRT_DIG.intValue());
  BigDecimal fx = xn.pow(2).add(c.negate());
  BigDecimal fpx = xn.multiply(new BigDecimal(2));
  BigDecimal xn1 = fx.divide(fpx,2*SQRT_DIG.intValue(),RoundingMode.HALF_DOWN);
  xn1 = xn.add(xn1.negate());
  BigDecimal currentSquare = xn1.pow(2);
  BigDecimal currentPrecision = currentSquare.subtract(c);

代码示例来源：origin: deeplearning4j/nd4j

BigDecimal pihalf = onepi.divide(new BigDecimal(2));
} else if (res.compareTo(pihalf.negate()) < 0) {
  res = res.add(onepi);

代码示例来源：origin: deeplearning4j/nd4j

return cos(x.negate());
} else if (x.compareTo(BigDecimal.ZERO) == 0) {
  return BigDecimal.ONE;
      ifac = ifac.multiply(BigInteger.valueOf(2 * i));
      xpowi = xpowi.multiply(xhighpr).multiply(xhighpr);
      BigDecimal corr = xpowi.divide(new BigDecimal(ifac), mcTay);
      resul = resul.add(corr);

代码示例来源：origin: deeplearning4j/nd4j

return sinh(x.negate()).negate();
} else if (x.compareTo(BigDecimal.ZERO) == 0) {
  return BigDecimal.ZERO;
    BigDecimal two = new BigDecimal(2);
    BigDecimal xhalf = x.divide(two);
      ifac = ifac.multiply(BigInteger.valueOf(2 * i + 1));
      xpowi = xpowi.multiply(xhighpr).multiply(xhighpr);
      BigDecimal corr = xpowi.divide(new BigDecimal(ifac), mcTay);
      resul = resul.add(corr);

代码示例来源：origin: deeplearning4j/nd4j

return sin(x.negate()).negate();
} else if (x.compareTo(BigDecimal.ZERO) == 0) {
  return BigDecimal.ZERO;
    return sin(subtractRound(res, p)).negate();
  } else if (res.multiply(new BigDecimal(2)).compareTo(p) > 0) {
    if (res.multiply(new BigDecimal(4)).compareTo(p) > 0) {
      return cos(subtractRound(p.divide(new BigDecimal(2)), res));
    } else {
        xpowi = xpowi.multiply(res).multiply(res).negate();
        BigDecimal corr = xpowi.divide(new BigDecimal(ifac), mcTay);
        resul = resul.add(corr);

代码示例来源：origin: deeplearning4j/nd4j

return cos(x.negate());
} else if (x.compareTo(BigDecimal.ZERO) == 0) {
  return BigDecimal.ONE;
    return cos(subtractRound(res, p)).negate();
  } else if (res.multiply(new BigDecimal(2)).compareTo(p) > 0) {
    return cos(subtractRound(p, res)).negate();
  } else {
    if (res.multiply(new BigDecimal(4)).compareTo(p) > 0) {
      return sin(subtractRound(p.divide(new BigDecimal(2)), res));
    } else {
        xpowi = xpowi.multiply(res).multiply(res).negate();
        BigDecimal corr = xpowi.divide(new BigDecimal(ifac), mcTay);
        resul = resul.add(corr);

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

final BigDecimal b_two_j_p_1 = new BigDecimal(2 * j + 1, mContext);
  final BigDecimal b_j = new BigDecimal(j, mContext);
  final BigDecimal b_j_p_1 = new BigDecimal(j + 1, mContext);
points[idx] = c.negate(mContext);
weights[idx] = tmp2;
  pmc = pmc.negate(mContext);

代码示例来源：origin: deeplearning4j/nd4j

if (x.compareTo(BigDecimal.ONE) > 0 || x.compareTo(BigDecimal.ONE.negate()) < 0) {
  throw new ArithmeticException("Out of range argument " + x.toString() + " of asin");
  return pi(mc).divide(new BigDecimal(2));
  return asin(x.negate()).negate();
  xpowi = sqrt(xhighpr.multiply(new BigDecimal(2)));
  resul = multiplyRound(xpowi, resul);
  MathContext mc = new MathContext(resul.precision());
  BigDecimal pihalf = pi(mc).divide(new BigDecimal(2));
  mc = new MathContext(err2prec(resul.doubleValue(), eps));

代码示例来源：origin: deeplearning4j/nd4j

final BigDecimal invx = exp(x.negate());
    ifac = ifac.multiply(BigInteger.valueOf(i));
    xpowi = xpowi.multiply(x);
    final BigDecimal c = xpowi.divide(new BigDecimal(ifac), mcTay);
    resul = resul.add(c);
    if (Math.abs(xpowi.doubleValue()) < i && Math.abs(c.doubleValue()) < 0.5 * xUlpDbl) {

代码示例来源：origin: robovm/robovm

return subtrahend.negate();
    return valueOf(this.smallValue - subtrahend.smallValue,this.scale);
  return new BigDecimal(this.getUnscaledValue().subtract(subtrahend.getUnscaledValue()), this.scale);
} else if (diffScale > 0) {
    return valueOf(this.smallValue-subtrahend.smallValue*MathUtils.LONG_POWERS_OF_TEN[diffScale],this.scale);
  return new BigDecimal(this.getUnscaledValue().subtract(
      Multiplication.multiplyByTenPow(subtrahend.getUnscaledValue(),diffScale)), this.scale);
} else {// case s2 > s1 : [ u1 * 10 ^ (s2 - s1) - u2 , s2 ]
    return valueOf(this.smallValue*MathUtils.LONG_POWERS_OF_TEN[diffScale]-subtrahend.smallValue,subtrahend.scale);
  return new BigDecimal(Multiplication.multiplyByTenPow(this.getUnscaledValue(),diffScale)
  .subtract(subtrahend.getUnscaledValue()), subtrahend.scale);

代码示例来源：origin: deeplearning4j/nd4j

return atan(x.negate()).negate();
final BigDecimal xhighprSq = multiplyRound(xhighpr, xhighpr).negate();
BigDecimal resul = xhighpr.plus();
BigDecimal resul = onepi.divide(new BigDecimal(2));
final BigDecimal xhighpr = divideRound(-1, scalePrec(x, 2));
final BigDecimal xhighprSq = multiplyRound(xhighpr, xhighpr).negate();

代码示例来源：origin: deeplearning4j/nd4j

BigDecimal xmin1 = x.subtract(new BigDecimal(n));
BigDecimal resul = log(scalePrec(x, 2)).negate();

代码示例来源：origin: konsoletyper/teavm

BigDecimal result = new BigDecimal(mantissa, -exponent);
if (multiplier != 1) {
  result = result.divide(BigDecimal.valueOf(multiplier));
  result = result.negate();

代码示例来源：origin: apache/hbase

BigDecimal longMax = BigDecimal.valueOf(Long.MAX_VALUE);
double negInf = Double.NEGATIVE_INFINITY;
BigDecimal negLarge = longMax.multiply(longMax).negate();
BigDecimal negMed = new BigDecimal("-10.0");
BigDecimal negSmall = new BigDecimal("-0.0010");
long zero = 0l;
BigDecimal posSmall = negSmall.negate();
BigDecimal posMed = negMed.negate();
BigDecimal posLarge = negLarge.negate();
double posInf = Double.POSITIVE_INFINITY;
double nan = Double.NaN;

代码示例来源：origin: apache/ignite

BigDecimal valArr[] = new BigDecimal[] {BigDecimal.ONE, BigDecimal.TEN, new BigDecimal("-100.5"),
  BigDecimal.valueOf(Long.MAX_VALUE, 0), BigDecimal.valueOf(Long.MIN_VALUE, 0),
  BigDecimal.valueOf(Long.MAX_VALUE, 8), BigDecimal.valueOf(Long.MIN_VALUE, 8)};
obj2.valArr = new BigDecimal[] {BigDecimal.ONE, BigDecimal.TEN.negate()};
obj2.rawVal = BigDecimal.TEN;
obj2.rawValArr = new BigDecimal[] {BigDecimal.ZERO, BigDecimal.ONE};

代码示例来源：origin: pholser/junit-quickcheck

@Override public BigDecimal generate(SourceOfRandomness random, GenerationStatus status) {
  BigDecimal minToUse = min;
  BigDecimal maxToUse = max;
  int power = status.size() + 1;
  if (minToUse == null && maxToUse == null) {
    maxToUse = TEN.pow(power);
    minToUse = maxToUse.negate();
  }
  if (minToUse == null)
    minToUse = maxToUse.subtract(TEN.pow(power));
  else if (maxToUse == null)
    maxToUse = minToUse.add(TEN.pow(power));
  int scale = decideScale();
  BigDecimal minShifted = minToUse.movePointRight(scale);
  BigDecimal maxShifted = maxToUse.movePointRight(scale);
  BigInteger range = maxShifted.toBigInteger().subtract(minShifted.toBigInteger());
  BigInteger generated;
  do {
    generated = random.nextBigInteger(range.bitLength());
  } while (generated.compareTo(range) >= 0);
  return minShifted.add(new BigDecimal(generated)).movePointLeft(scale);
}

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