02 Aug

#### Weekly Update: DT and CT Riccati Recursion

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Finally, I get the continuous-time Riccati recursion correctly, which means that what I told is wrong.

I followed the paper, "Connection between continuous and discrete Riccati equations with applications to Kalman filtering" back in 1980s. I modified the procedure to incorporate the different rates of each action.

I am ready to tackle the optimization problem. I think it is better to consider scalar case ($\Pi$ is scarlar) to check its convexity.