Example usage for java.math BigDecimal multiply

Introduction

In this page you can find the example usage for java.math BigDecimal multiply.

Prototype

public BigDecimal multiply(BigDecimal multiplicand) 

Source Link

Document

Returns a BigDecimal whose value is (this × multiplicand), and whose scale is (this.scale() + multiplicand.scale()) .

Usage

From source file:nl.strohalm.cyclos.utils.DateHelper.java

/**
 * inverse function of decimalDaysBetween: adds a BigDecimal number of days to a Calendar.
 * @param date1 the date to which something is added
 * @param augend the number of days which is added, as a BigDecimal. May be negative.
 * @return null if one of the arguments is null, else the date + augend days.
 *///  ww w  .  ja v a  2s .  c o  m
public static Calendar decimalDaysAdd(final Calendar date1, final BigDecimal augend) {
    if (date1 == null || augend == null) {
        return null;
    }
    final BigDecimal date1InMillis = new BigDecimal(date1.getTimeInMillis());
    final BigDecimal augendInMillis = augend.multiply(new BigDecimal(DateUtils.MILLIS_PER_DAY));
    final BigDecimal resultAsBig = date1InMillis.add(augendInMillis);
    final Calendar result = Calendar.getInstance();
    result.setTimeInMillis(resultAsBig.longValue());
    return result;
}

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From source file:org.cirdles.ambapo.UTMToLatLong.java

/**
 * // www  .j a  va 2 s.c o  m
 * @param originalTau
 * @param sigma
 * @param eccentricity
 * @param hemisphere
 * @return latitude
 */
private static BigDecimal calcLatitude(BigDecimal originalTau, BigDecimal sigma, BigDecimal eccentricity,
        char hemisphere) {

    BigDecimal funcOfTau = functionOfTau(originalTau, sigma, originalTau).setScale(PRECISION,
            RoundingMode.HALF_UP);

    BigDecimal changeInTau = changeInTau(eccentricity, originalTau, sigma);

    BigDecimal newTau = originalTau.subtract(funcOfTau.divide(changeInTau, PRECISION, RoundingMode.HALF_UP));

    BigDecimal latitude = (new BigDecimal(Math.atan(newTau.doubleValue())))
            .multiply(new BigDecimal(180.0 / Math.PI));

    if (hemisphere == 'S')
        latitude = latitude.multiply(new BigDecimal(-1));

    return latitude;

}

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From source file:Main.java

/**
 * Compute e^x to a given scale. Break x into its whole and fraction parts
 * and compute (e^(1 + fraction/whole))^whole using Taylor's formula.
 * //from  w w  w. j  a  va2s  .co  m
 * @param x
 *            the value of x
 * @param scale
 *            the desired scale of the result
 * @return the result value
 */
public static BigDecimal exp(BigDecimal x, int scale) {
    // e^0 = 1
    if (x.signum() == 0) {
        return BigDecimal.valueOf(1);
    }

    // If x is negative, return 1/(e^-x).
    else if (x.signum() == -1) {
        return BigDecimal.valueOf(1).divide(exp(x.negate(), scale), scale, BigDecimal.ROUND_HALF_EVEN);
    }

    // Compute the whole part of x.
    BigDecimal xWhole = x.setScale(0, BigDecimal.ROUND_DOWN);

    // If there isn't a whole part, compute and return e^x.
    if (xWhole.signum() == 0) {
        return expTaylor(x, scale);
    }

    // Compute the fraction part of x.
    BigDecimal xFraction = x.subtract(xWhole);

    // z = 1 + fraction/whole
    BigDecimal z = BigDecimal.valueOf(1).add(xFraction.divide(xWhole, scale, BigDecimal.ROUND_HALF_EVEN));

    // t = e^z
    BigDecimal t = expTaylor(z, scale);

    BigDecimal maxLong = BigDecimal.valueOf(Long.MAX_VALUE);
    BigDecimal result = BigDecimal.valueOf(1);

    // Compute and return t^whole using intPower().
    // If whole > Long.MAX_VALUE, then first compute products
    // of e^Long.MAX_VALUE.
    while (xWhole.compareTo(maxLong) >= 0) {
        result = result.multiply(intPower(t, Long.MAX_VALUE, scale)).setScale(scale,
                BigDecimal.ROUND_HALF_EVEN);
        xWhole = xWhole.subtract(maxLong);

        Thread.yield();
    }
    return result.multiply(intPower(t, xWhole.longValue(), scale)).setScale(scale, BigDecimal.ROUND_HALF_EVEN);
}

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From source file:com.spaceprogram.simplejpa.util.AmazonSimpleDBUtil.java

public static String encodeRealNumberRange(BigDecimal number, int maxDigitsLeft, int maxDigitsRight,
        BigDecimal offsetValue) {
    BigDecimal shiftMultiplier = new BigDecimal(Math.pow(10, maxDigitsRight));
    //        System.out.println("shiftMultiplier=" + shiftMultiplier);
    BigDecimal shiftedNumber = number.multiply(shiftMultiplier);
    //        System.out.println("shiftedNumber=" + shiftedNumber);
    shiftedNumber = shiftedNumber.setScale(0, BigDecimal.ROUND_HALF_UP);
    //        System.out.println("shiftedNumber rounded=" + shiftedNumber);
    BigDecimal shiftedOffset = offsetValue.multiply(shiftMultiplier);
    //        System.out.println("shiftedOffset=" + shiftedOffset);
    BigDecimal offsetNumber = shiftedNumber.add(shiftedOffset);
    //        System.out.println("offsetNumber=" + offsetNumber);
    String longString = offsetNumber.toString();
    //        System.out.println("shifted string=" + longString);
    int numBeforeDecimal = longString.length();
    int numZeroes = maxDigitsLeft + maxDigitsRight - numBeforeDecimal;
    StringBuffer strBuffer = new StringBuffer(numZeroes + longString.length());
    for (int i = 0; i < numZeroes; i++) {
        strBuffer.insert(i, '0');
    }//  w  w w  .j  ava2s.co  m
    strBuffer.append(longString);
    return strBuffer.toString();
}

---

From source file:com.aoindustries.website.signup.SignupCustomizeManagementActionHelper.java

/**
 * Gets the total monthly rate for the server, basic server + hardware options + management options
 *//*w w  w.j  a v a 2  s . c om*/
public static BigDecimal getTotalMonthlyRate(AOServConnector rootConn,
        SignupCustomizeServerForm signupCustomizeServerForm,
        SignupCustomizeManagementForm signupCustomizeManagementForm, PackageDefinition packageDefinition)
        throws SQLException, IOException {
    BigDecimal monthlyRate = SignupCustomizeServerActionHelper.getHardwareMonthlyRate(rootConn,
            signupCustomizeServerForm, packageDefinition);

    int totalDiskSpace = SignupCustomizeServerActionHelper.getTotalHardwareDiskSpace(rootConn,
            signupCustomizeServerForm);

    // Add the backup onsite option
    int backupOnsiteOption = signupCustomizeManagementForm.getBackupOnsiteOption();
    if (backupOnsiteOption != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits().get(backupOnsiteOption);
        BigDecimal rate = pdl.getAdditionalRate();
        if (rate != null)
            monthlyRate = monthlyRate.add(rate.multiply(BigDecimal.valueOf(totalDiskSpace)));
    }

    // Add the backup offsite option
    int backupOffsiteOption = signupCustomizeManagementForm.getBackupOffsiteOption();
    if (backupOffsiteOption != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits().get(backupOffsiteOption);
        BigDecimal rate = pdl.getAdditionalRate();
        if (rate != null)
            monthlyRate = monthlyRate.add(rate.multiply(BigDecimal.valueOf(totalDiskSpace)));
    }

    // Add the distributionScanOption option
    int distributionScanOption = signupCustomizeManagementForm.getDistributionScanOption();
    if (distributionScanOption != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits().get(distributionScanOption);
        BigDecimal rate = pdl.getAdditionalRate();
        if (rate != null)
            monthlyRate = monthlyRate.add(rate);
    }

    // Add the backup offsite option
    int failoverOption = signupCustomizeManagementForm.getFailoverOption();
    if (failoverOption != -1) {
        PackageDefinitionLimit pdl = rootConn.getPackageDefinitionLimits().get(failoverOption);
        String resourceName = pdl.getResource().getName();
        if (Resource.FAILOVER.equals(resourceName)) {
            // Failover mirror only
            BigDecimal rate = pdl.getAdditionalRate();
            if (rate != null)
                monthlyRate = monthlyRate.add(rate.multiply(BigDecimal.valueOf(totalDiskSpace)));
        } else if (Resource.MYSQL_REPLICATION.equals(resourceName)) {
            // Failover mirror plus MySQL replication
            Resource failoverResource = rootConn.getResources().get(Resource.FAILOVER);
            if (failoverResource == null)
                throw new SQLException("Unable to find Resource: " + Resource.FAILOVER);
            PackageDefinitionLimit failoverPDL = packageDefinition.getLimit(failoverResource);
            if (failoverPDL == null)
                throw new SQLException("Unable to find PackageDefinitionLimit: " + Resource.FAILOVER
                        + " on PackageDefinition #" + packageDefinition.getPkey());
            BigDecimal additionalRate = BigDecimal.valueOf(0, 2);
            BigDecimal failoverRate = failoverPDL.getAdditionalRate();
            if (failoverRate != null)
                additionalRate = failoverRate.multiply(BigDecimal.valueOf(totalDiskSpace));
            BigDecimal rate = pdl.getAdditionalRate();
            if (rate != null)
                additionalRate = additionalRate.add(rate);
            if (additionalRate != null)
                monthlyRate = monthlyRate.add(additionalRate);
        }
    }

    return monthlyRate;
}

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From source file:org.libreplan.business.planner.entities.DerivedAllocationGenerator.java

private static List<DerivedDayAssignment> createAssignments(DerivedAllocation parent, BigDecimal alpha,
        List<Resource> resourcesFound, List<? extends DayAssignment> dayAssignments) {
    List<DerivedDayAssignment> result = new ArrayList<DerivedDayAssignment>();
    EffortDistributor distributor = new EffortDistributor(resourcesFound,
            AssignedEffortForResource.effortDiscounting(Collections.singletonList(parent)));
    for (DayAssignment each : dayAssignments) {
        int durationInSeconds = alpha.multiply(new BigDecimal(each.getDuration().getSeconds())).intValue();
        LocalDate day = each.getDay();
        List<ResourceWithAssignedDuration> distributeForDay = distributor
                .distributeForDay(PartialDay.wholeDay(day), seconds(durationInSeconds));
        result.addAll(asDerived(parent, day, distributeForDay));
    }//from   w ww  .j  ava 2s  .  c  o m
    return result;
}

---

From source file:org.cirdles.ambapo.UTMToLatLong.java

/**
 * //from w  w  w  .  j  av  a2 s.  c  om
 * @param eccentricity
 * @param currentTau
 * @param currentSigma
 * @return change in tau
 */
private static BigDecimal changeInTau(BigDecimal eccentricity, BigDecimal currentTau, BigDecimal currentSigma) {

    BigDecimal changeInTau = ((new BigDecimal(
            Math.sqrt((1 + currentSigma.pow(2).doubleValue()) * (1 + currentTau.pow(2).doubleValue()))))
                    .subtract(currentSigma.multiply(currentTau)))
                            .multiply(new BigDecimal(1 - eccentricity.pow(2).doubleValue()))
                            .multiply(new BigDecimal(Math.sqrt(1 + currentTau.pow(2).doubleValue())))
                            .divide(BigDecimal.ONE.add(BigDecimal.ONE.subtract(eccentricity.pow(2)))
                                    .multiply(currentTau.pow(2)), PRECISION, RoundingMode.HALF_UP);

    return changeInTau;

}

---

From source file:com.whatlookingfor.common.utils.StringUtils.java

/**
 * ???// w  w w.  j ava2  s.c  o m
 *
 * @param v1 
 * @param v2 
 * @return ?
 */
public static double mul(double v1, double v2) {
    BigDecimal b1 = new BigDecimal(Double.toString(v1));
    BigDecimal b2 = new BigDecimal(Double.toString(v2));
    return b1.multiply(b2).doubleValue();
}

---

From source file:com.breadwallet.tools.security.RequestHandler.java

public static RequestObject getRequestFromString(String str) {
    if (str == null || str.isEmpty())
        return null;
    RequestObject obj = new RequestObject();

    String tmp = str.trim().replaceAll("\n", "").replaceAll(" ", "%20");
    URI uri;//from   ww  w.j av a2s  .c om
    try {
        uri = URI.create(tmp);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }

    if (uri.getScheme() == null || !uri.getScheme().equals("bitcoin")) {
        tmp = "bitcoin://".concat(tmp);
    } else {
        tmp = tmp.replace("bitcoin:", "bitcoin://");
    }
    uri = URI.create(tmp);
    //        String[] parts = tmp.split("\\?", 2);
    String host = uri.getHost();
    if (host != null) {
        String addrs = host.trim();
        if (BRWalletManager.validateAddress(addrs)) {
            obj.address = addrs;
        }
    }
    String query = uri.getQuery();
    if (query == null)
        return obj;
    String[] params = query.split("&");
    for (String s : params) {
        String[] keyValue = s.split("=", 2);
        if (keyValue.length != 2)
            continue;
        if (keyValue[0].trim().equals("amount")) {
            try {
                BigDecimal bigDecimal = new BigDecimal(keyValue[1]);
                obj.amount = bigDecimal.multiply(new BigDecimal("100000000")).toString();
            } catch (NumberFormatException e) {
                e.printStackTrace();
            }
            //                Log.e(TAG, "amount: " + obj.amount);
        } else if (keyValue[0].trim().equals("label")) {
            obj.label = keyValue[1];
            //                Log.e(TAG, "label: " + obj.label);
        } else if (keyValue[0].trim().equals("message")) {
            obj.message = keyValue[1];
            //                Log.e(TAG, "message: " + obj.message);
        } else if (keyValue[0].trim().startsWith("req")) {
            obj.req = keyValue[1];
            //                Log.e(TAG, "req: " + obj.req);
        } else if (keyValue[0].trim().startsWith("r")) {
            obj.r = keyValue[1];
            //                Log.e(TAG, "r: " + obj.r);
        }
    }
    //        Log.e(TAG, "obj.address: " + obj.address);
    return obj;
}

---

From source file:biz.c24.io.spring.integration.samples.fpml.FpmlGenerator.java

private static TradeConfirmed randomizeFpML(TradeConfirmed tradeConfirmed) throws CloneNotSupportedException {
    ISO8601DateTime creationDate = new ISO8601DateTime(new Date());
    ISO8601Date tradeDate = new ISO8601Date(new GregorianCalendar(2011, Calendar.JULY, 5).getTime());
    ISO8601Date expiryDate = new ISO8601Date(new GregorianCalendar(2012, Calendar.JANUARY, 5).getTime());
    ISO8601Date settlementDate = new ISO8601Date(new GregorianCalendar(2011, Calendar.JULY, 7).getTime());
    ISO8601Date valueDate = new ISO8601Date(new GregorianCalendar(2012, Calendar.JANUARY, 9).getTime());

    Random random = new Random();

    BigDecimal putAmount = new BigDecimal((1 + random.nextInt(999)) * 100000.);
    BigDecimal callAmount = new BigDecimal((1 + random.nextInt(999)) * 100000.);
    BigDecimal fxRate = callAmount.divide(putAmount, 8, RoundingMode.HALF_EVEN).setScale(5,
            BigDecimal.ROUND_HALF_UP);
    BigDecimal premiumValue = new BigDecimal(0.001).setScale(5, BigDecimal.ROUND_HALF_UP);
    BigDecimal premiumAmount = callAmount.multiply(premiumValue).setScale(2, BigDecimal.ROUND_HALF_UP);

    String sendTo = "SendTo" + random.nextInt(999999);
    String sentBy = "SentBy" + random.nextInt(999999);
    String msgId = "Msg" + random.nextInt(999999);
    String conversationId = "Conv" + random.nextInt(999999);
    String tradeId1 = "ID1:" + random.nextInt(999999);
    String tradeId2 = "ID2:" + random.nextInt(999999);

    // Set the header
    NotificationMessageHeader header = tradeConfirmed.getHeader();
    header.getMessageHeadermodel().setCreationTimestamp(creationDate);
    header.getConversationId().setValue(conversationId);
    header.getMessageId().setValue(msgId);
    header.getMessageHeadermodel().getSentBy().setValue(sentBy);
    header.getMessageHeadermodel().getSendTo()[0].setValue(sendTo);

    // Set the TradeHeader
    TradeHeader tradeHeader = tradeConfirmed.getTrade().getTradeHeader();
    tradeHeader.getPartyTradeIdentifier()[0].getTradeIdentifierSG1()[0].getTradeId().setValue(tradeId1);
    tradeHeader.getPartyTradeIdentifier()[1].getTradeIdentifierSG1()[0].getTradeId().setValue(tradeId2);
    tradeHeader.getTradeDate().setValue(tradeDate);

    FxOptionLeg fxOptionLeg = (FxOptionLeg) tradeConfirmed.getTrade().getProduct();
    fxOptionLeg.getExpiryDateTime().setExpiryDate(expiryDate);

    FxOptionPremium optionPremium = fxOptionLeg.getFxOptionPremium()[0];
    optionPremium.getPremiumAmount().setAmount(premiumAmount);
    optionPremium.setPremiumSettlementDate(settlementDate);
    SettlementInstruction settlementInstruction = optionPremium.getSettlementInformation()
            .getSettlementInstruction();
    settlementInstruction.getCorrespondentInformation().getRoutingIdentificationmodel().getRoutingIds()
            .getRoutingId()[0].setValue(sendTo);
    settlementInstruction.getBeneficiary().getRoutingIdentificationmodel().getRoutingIds().getRoutingId()[0]
            .setValue(sentBy);//from w w w  . j a v  a2  s. co m
    optionPremium.getPremiumQuote().setPremiumValue(premiumValue);
    fxOptionLeg.setValueDate(valueDate);

    fxOptionLeg.getPutCurrencyAmount().getCurrency().setValue("AUD");
    fxOptionLeg.getPutCurrencyAmount().setAmount(putAmount);

    fxOptionLeg.getPutCurrencyAmount().getCurrency().setValue("USD");
    fxOptionLeg.getCallCurrencyAmount().setAmount(callAmount);

    fxOptionLeg.getFxStrikePrice().setRate(fxRate);

    fxOptionLeg.getQuotedAs().getOptionOnCurrency().setValue("AUD");
    fxOptionLeg.getQuotedAs().getFaceOnCurrency().setValue("USD");
    fxOptionLeg.getQuotedAs().getQuotedTenor().setPeriod("M");
    fxOptionLeg.getQuotedAs().getQuotedTenor().setPeriodMultiplier(new BigInteger("6"));

    tradeConfirmed.getParty()[0].getPartyId()[0].setValue(sendTo);
    tradeConfirmed.getParty()[1].getPartyId()[0].setValue(sentBy);

    return (TradeConfirmed) tradeConfirmed.cloneDeep();
}

---

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