Java Utililty Methods BigInteger Calculate

List of utility methods to do BigInteger Calculate

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Description

The list of methods to do BigInteger Calculate are organized into topic(s).

Method

NumberdecodeFloat(BigInteger rawSign, BigInteger rawExponent, BigInteger rawMantissa, int signWidth, int exponentWidth, int mantissaWidth, int bias, MathContext mc)
decode Float 
if (signWidth < 0 || signWidth > 1 || exponentWidth < 0 || mantissaWidth < 0)
    throw new IllegalArgumentException();
else if (rawExponent.compareTo(BigInteger.ZERO) == 0) {
    if (rawMantissa.compareTo(BigInteger.ZERO) == 0) {
        boolean isNegative = (rawSign.compareTo(BigInteger.ZERO) != 0);
        return isNegative ? -0.0 : 0.0;
    } else {
        boolean isNegative = (rawSign.compareTo(BigInteger.ZERO) != 0);
...
BigIntegerdecodeToBigInteger(String input)
decode To Big Integer 
return new BigInteger(1, decode(input));
BigInteger[]DiffieHellman(BigInteger p, BigInteger g, BigInteger x, BigInteger y, BigInteger y_B)
Diffie Hellman 
if (y == null)
    y = g.modPow(x, p);
BigInteger k = null;
if (y_B != null)
    k = y_B.modPow(x, p);
return new BigInteger[] { y, k };
intdistance(BigInteger a, BigInteger b)
distance 
int ia = a.intValue();
int ib = b.intValue();
if (ib >= ia)
    return ib - ia;
return ib + (int) Math.pow(2, M) - ia;
BigIntegerdistance(BigInteger a, BigInteger b)
return the distance between two number, that is |a-b|. 
return a.subtract(b).abs();
BigIntegerdiv(BigInteger dividend, BigInteger divisor)
div 
return dividend.divide(divisor);
BigIntegerdivide(BigInteger dividend, BigInteger divisor)
Divides the given dividend by the divisor. 
BigInteger result = null;
if (dividend != null && divisor != null) {
    result = dividend.divide(divisor);
return result;
Stringdump(BigInteger x)

Returns a hexadecimal dump of the trimmed bytes of a BigInteger . 

return dumpString(trim(x));
voiddumpBitLengthOfValues(BigInteger... data)
dump Bit Length Of Values 
System.out.println("Bitlengths:");
for (BigInteger bigInt : data) {
    System.out.println(bigInt.bitLength());
StringdumpDataPathId(BigInteger datapathId)
dump Data Path Id 
return datapathId.toString(16);