【Weekly 3 Questions, Question 20】2017.09.23

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bg9.png By replying, you can see the answer to the previous question. (Single-choice question) A certain control system uses a proportional-integral controller, and someone used a trial-and-error method starting with proportionality and then adding integration to tune the parameters of the controller. If the value of the proportionality is already fairly appropriate, then when integrating this effect, ( ) A. the proportionality should be reduced appropriately; B. the proportionality should be increased appropriately; C. there is no need to change the proportionality; D. it cannot be determined. The answer is B. The question for this round is as follows: (Single-choice question) Which of the following expressions is correct? A. p_table = p_large – p_absolute; B. p_absolute = p_table + p_large; C. p_table = p_absolute + p_large; D. p_absolute = p_table – p_large. —————————————————————————————————————————————————————————————— Scoring criteria: 2 Wealth points for an incorrect answer; 3–6 points for an *incomplete* correct answer; 8 Wealth points for a correct answer accompanied by a detailed explanation; 10–15 Wealth points for a correct answer with additional *explanations*. Please score according to these criteria. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming; points will start to be deducted after three warnings