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Simulink integrator block initial conditions

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Raghuraman S
Raghuraman S 2019-2-5
评论： Wang Tao 2021-4-24
Hi, How does one specify initial conditions in simulink integrator block for times not t= 0 for example, y(3) =5;

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Fangjun Jiang
Fangjun Jiang 2019-2-5
utilize the "External reset" (set as rising) and "Initial ocndition source" (set as external).
Compare clock with t=3 and make it as the "External reset" signal.
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Fangjun Jiang
Fangjun Jiang 2021-4-23
Compare Clock with Constant block (value is 3) using the Relational Operator block, the output is trur or false.
Wang Tao
Wang Tao 2021-4-24
Thanks for the prompt reply! I can get the answer for the time after t=3 with the y(3)=5 now. But the problem is for the time earilier than 3 as t<3, is not correct.
I am handling some two point boundary value problem, which y(3)=5 is the end/ final condition. Is there any way to solve this.
It seems can change the initial setting of integrator through properties, but there are no final condition settings.

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