コード例 #1
0
ファイル: Program.cs プロジェクト: spectre1989/thor
        public static Term Multiply(Term a, Term b)
        {
            List <Multiplier> multipliers = new List <Multiplier>(a.multipliers);

            foreach (Multiplier mul_b in b.multipliers)
            {
                int index = multipliers.FindIndex(delegate(Multiplier item){ return(item.name == mul_b.name); });
                if (index == -1)
                {
                    multipliers.Add(mul_b);
                }
                else
                {
                    Multiplier mul_a = multipliers[index];
                    mul_a.power       += mul_b.power;
                    multipliers[index] = mul_a;
                }
            }

            return(new Term(a.count * b.count, multipliers, a.dimension + b.dimension));
        }
コード例 #2
0
ファイル: Program.cs プロジェクト: spectre1989/thor
        public static Term Parse(string s)
        {
            int sign = 1;
            List <Multiplier> multipliers = new List <Multiplier>();
            string            dimension   = "";

            int i = 0;

            while (i < s.Length)
            {
                char c = s[i];
                if (c == '-')
                {
                    sign = -1;
                }
                else
                {
                    bool is_dimension = (c == 'x' || c == 'y' || c == 'z');
                    if (is_dimension)
                    {
                        dimension = s.Substring(i, s.Length - i);
                        break;
                    }
                    else
                    {
                        Multiplier multiplier = new Multiplier();
                        multiplier.power = 1;
                        multiplier.name  = c.ToString();

                        multipliers.Add(multiplier);
                    }
                }

                ++i;
            }

            return(new Term(sign, multipliers, dimension));
        }