public static BFloat Pow(BFloat x, double y)
{
BFloat ret = x;
ret._scale = x._scale * y;
ret._num = Math.Pow(x._num, y);
ret.CutNumber();
return(ret);
}
public static BFloat operator *(BFloat left, BFloat right)
{
BFloat ret = left;
ret._num = left._num * right._num;
ret._scale = left._scale + right._scale;
ret.CutNumber();
return(ret);
}
public static BFloat operator /(BFloat left, BFloat right)
{
BFloat ret = left;
if (left._scale < right._scale)
{
left.ChangeScale(right._scale);
}
ret._num = left._num / right._num;
ret._scale = left._scale - right._scale;
ret.CutNumber();
return(ret);
}
public static BFloat operator -(BFloat left, BFloat right)
{
BFloat ret = left;
//修正位数
if (left._scale > right._scale)
{
right.ChangeScale(left._scale);
}
else if (left._scale < right._scale)
{
left.ChangeScale(right._scale);
}
ret._scale = left._scale;
ret._num = left._num - right._num;
ret.CutNumber();
return(ret);
}