['The', 'choice', 'of', 'the', 'interpolation', 'functions', 'and', 'support', 'point', 'coordinates', 'for', 'the', 'gradient', 'field', 'is', 'crucial', 'to', 'ensure', 'stability', 'and', 'accuracy', 'of', 'the', 'formulation', '.']