急求matlab R2007b版本中riccati方程的求解命令是什麽？！！！！！！
care Solve continuous-time algebraic Riccati equation連續時間型
dare Solve discrete-time algebraic Riccati equations (DAREs)離散時間型
後面兩個是廣義解：
gcare Generalized solver for continuous-time algebraic Riccati equation
gdare Generalized solver for discrete-time algebraic Riccati equation
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