public static Floatz Multiply(Floatz refA, Floatz refB)
{
Floatz a = refA.Clone();
Floatz b = refB.Clone();
if (a.isZero() || b.isZero())
{
return(Floatz.Constants.ZERO(a.separator));
}
List <int> fullA = a.ToOneList();
List <int> fullB = b.ToOneList();
List <int> fullC;
if (a.zecimala.Count >= b.zecimala.Count)
{
fullC = Multiply2Lists(fullA, fullB);
}
else
{
fullC = Multiply2Lists(fullB, fullA);
}
int sepPlace = 0;
if (!a.isZecimalaZero())
{
sepPlace += a.zecimala.Count;
}
if (!b.isZecimalaZero())
{
sepPlace += b.zecimala.Count;
}
Floatz c = new Floatz(a.separator);
c = Floatz.FromOneList(fullC, sepPlace);
c.isNegative = (a.isNegative || b.isNegative);
if (a.isNegative && b.isNegative)
{
c.isNegative = false; //-1*-1=1
}
c.ComprimaIntreaga();
c.ComprimaZecimala();
return(c);
}
public static Floatz Divide(Floatz refA, Floatz refB, long nrMaxZecimalaLaImpartire = 74)
{
Floatz a = refA.Clone();
Floatz b = refB.Clone();
if (a.isZero())
{
return(new Floatz(a.separator));
}
if (b.isZero())
{
throw new Exception("a/0");
}
if (a == b)
{
return(Floatz.Constants.ONE(a.separator));
}
List <int> fullB = b.ToOneList();
if (!b.isZecimalaZero())
{
string mult = "1";
for (int i = 0; i < b.zecimala.Count; i++)
{
mult += "0";
}
a = a * new Floatz(mult);
}
//a.Print();
//Console.WriteLine(Floatz.ListToString(fullB));
Floatz c = new Floatz();
c = DivideFloatzWithList(a, fullB, nrMaxZecimalaLaImpartire);
//c.Print();
c.separator = a.separator;
c.isNegative = (a.isNegative || b.isNegative);
if (a.isNegative && b.isNegative)
{
c.isNegative = false; //-1*-1=1
}
return(c);
}
public static Floatz Subtract(Floatz refA, Floatz refB)
{
Floatz a = refA.Clone();
Floatz b = refB.Clone();
Floatz c = new Floatz(a.separator);
if (a.isZero() && b.isZero())
{
return(Floatz.Constants.ZERO(a.separator));
}
if (a.isZero())
{
c.intreaga = b.intreaga;
c.zecimala = b.zecimala;
c.isNegative = !b.isNegative;
return(c);
}
if (b.isZero())
{
c.intreaga = a.intreaga;
c.zecimala = a.zecimala;
c.isNegative = a.isNegative;
return(c);
}
//Console.WriteLine("{0}|{1}",Floatz.ListToString(a.intreaga), Floatz.ListToString(a.zecimala));
/*
* 5-3
* if(5<3)
* return -(5-3)
* else
* return 5-3
*/
if (!a.isNegative && b.isNegative)
{
b.isNegative = false;
c = Add(a, b);
return(c);
}
if (a.isNegative && !b.isNegative)
{
a.isNegative = false;
c = Add(a, b);
c.isNegative = true;
return(c);
}
if (a < b)
{
c = Subtract(b, a);
c.isNegative = true;
return(c);
}
// Aceasta functie este construita in asa fel incat a > b
List <int> fullA = a.ToOneList();
if (a.isZecimalaZero())
{
fullA.Add(0);
}
List <int> fullB = b.ToOneList();
if (b.isZecimalaZero())
{
fullB.Add(0);
}
for (int i = 0; i < a.intreaga.Count - b.intreaga.Count; i++)
{
fullB.Insert(0, 0);
}
for (int i = 0; i < b.intreaga.Count - a.intreaga.Count; i++)
{
fullA.Insert(0, 0);
}
for (int i = 0; i < a.zecimala.Count - b.zecimala.Count; i++)
{
fullB.Add(0);
}
for (int i = 0; i < b.zecimala.Count - a.zecimala.Count; i++)
{
fullA.Add(0);
}
List <int> fullC = Subtract2Lists(fullA, fullB);
int fullCi = 0;
fullCi = Math.Max(a.zecimala.Count, b.zecimala.Count);
c = Floatz.FromOneList(fullC, fullCi);
c.ComprimaIntreaga();
c.ComprimaZecimala();
return(c);
}