【简答题】Delete the superfluous word or words in each of the following sentences. Give the reason for the deletion. Beverage bottles and cans now comprise ten percent of all municipal garbage and waste in the ...
【简答题】Please give the reasonable answer to the time-optimal control problem of the double integral system. (1) Write out the Hamiltonian; (2) Give out the expression of the optimal control; (3) Compute the ...