In this excerpt, the author wants to let us know of his and his grandma's behaviour. He describes how she pounded the floor with her parasol, shouted, waved, and broke her glasses. By using the words "pound," "shout," and "rage," the author wants to convey a mood of passion and intense emotion, in order to better describe the way the grandma felt.
QUANTITATIVE RESEARCH ACROSS FIELDS A. Quantitative Research and Anthropology > Many discoveries in this field like human behavior in the society, racial conflicts and human evolution have given enormous contributions to the improvement of human life.
The third-person omniscient point of view is a method of storytelling in which the narrator knows the thoughts and feelings of all of the characters in the story, On the other hand third-person limited, which bonds closely to one character's -- usually the main character's outlook.