伟星 郭
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Recent activity by 伟星 郭-
How to compare a expression with 0, Invalid data in vars array
AnsweredThis is my obj : to minimize $\sum^{-1}_{t=-T_H}(a_t*q_t*p*K + h*y_t+b*z_t)$ A constraint is $y_t = max(0, y_{t-1} + \sum_{i∈{j:j+l_j=t}}q_i * p - d_t)$ And all I want to do is to get max(expressi...