public string ToStringWithIntegerPart(Structures.Frac frac)
{
string result = "";
if (frac.nom == 0)
{
result += "0";
}
else
{
long intPart = Math.Abs(frac.nom) / Math.Abs(frac.denom);
if (frac.nom * frac.denom < 0)
{
result += "-";
}
long newNom = Math.Abs(frac.nom) % Math.Abs(frac.denom);
if (intPart != 0)
{
result += intPart;
}
if (newNom != 0)
{
result += " " + new Structures.Frac(newNom, Math.Abs(frac.denom));
}
}
return(result);
}
public Structures.Frac multiply(Structures.Frac frac1, Structures.Frac frac2)
{
long newNom = frac1.nom * frac2.nom;
long newDenom = frac1.denom * frac2.denom;
long greatestCommonDivisor = findGreatestCommonDivisor(Math.Abs(newNom), Math.Abs(newDenom));
return(new Structures.Frac(newNom / greatestCommonDivisor, newDenom / greatestCommonDivisor));
}
public Structures.Frac divide(Structures.Frac frac1, Structures.Frac frac2)
{
if (frac2.nom == 0)
{
throw new ArithmeticException("Dividing by zero!");
}
return(multiply(frac1, new Structures.Frac(frac2.denom, frac2.nom)));
}
public Structures.Frac caclSum1(int n)
{
Structures.Frac frac = new Structures.Frac(0, 1);
for (int i = 1; i <= n; i++)
{
Structures.Frac tmp = new Structures.Frac(1, i * (i + 1));
frac = plus(frac, tmp);
}
return(frac);
}
public Structures.Frac caclSum2(int n)
{
if (n <= 1)
{
throw new ArgumentException("For second sum 'n' must be greater than 1!");
}
Structures.Frac frac = new Structures.Frac(1, 1);
for (int i = 2; i <= n; i++)
{
Structures.Frac tmp = new Structures.Frac(i * i - 1, i * i);
frac = multiply(frac, tmp);
}
return(frac);
}
public Structures.Frac minus(Structures.Frac frac1, Structures.Frac frac2)
{
return(plus(frac1, new Structures.Frac(-frac2.nom, frac2.denom)));
}
public double doubleVal(Structures.Frac frac)
{
return((double)frac.nom / frac.denom);
}