internal bool TryGetValue(int inx, [MaybeNullWhen(false)] out τ scal) => Scals.TryGetValue(inx, out scal);
/// <summary>Adds entry to internal dictionary without checking if it is equal to zero.</summary> /// <param name="key">Index.</param> /// <param name="val">Value.</param> internal void Add(int key, τ val) => Scals.Add(key, val);