public LongDecimal Plus(LongDecimal a, LongDecimal b)
{
a.Adduction(ref a, ref b);
LongDecimal c = new LongDecimal("1.0", a.e);
c.e = a.e;
if (a.z && b.z)
{
c.m = c.m.Plus(a.m, b.m);
}
if (!(a.z || b.z))
{
c.m = c.m.Plus(a.m, b.m);
c.z = false;
}
if (!a.z && b.z)
{
c = c.Minus(b, a);
}
if (a.z && !b.z)
{
c = c.Minus(a, b);
}
a = Reduction(a);
b = Reduction(b);
c = c.Reduction(c);
return(c);
}
public LongDecimal Minus(LongDecimal a, LongDecimal b)
{
a.Adduction(ref a, ref b);
LongDecimal c = new LongDecimal("1.0", a.e);
c.e = a.e;
if (a.m.StringComparer(b.m.x, a.m.x))
{
c = new LongDecimal("-1.0", a.e);
c.e = a.e;
c.m = c.m.Minus(b.m, a.m);
}
else
{
c.m = c.m.Minus(a.m, b.m);
}
c = c.Reduction(c);
return(c);
}
