How can i mutiply variable in simulink

2013 9 16
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i got a problem with the equation: t*y(t)''+4y(t)'+2y(t)=4 How can i mutiply y(t)'' by variable 't' in simulink? Gain is not working with 't' \

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Azzi Abdelmalek
Azzi Abdelmalek 2013-9-16

0 个投票

Use a clock block to get the time t

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Nguyen
Nguyen 2013-9-16
t is not the time, t is a variable(like x). Can you help?
Azzi Abdelmalek
Azzi Abdelmalek 2013-9-16
How did you realize y''(t) in simulink?
Nguyen
Nguyen 2013-9-16
with two integrator. x*y(x)''+4y(x)'+2y(x)=4.
Azzi Abdelmalek
Azzi Abdelmalek 2013-9-16
编辑：Azzi Abdelmalek 2013-9-16
That means x represents time
Azzi Abdelmalek
Azzi Abdelmalek 2013-9-16
even x does not represent time, use a clock to get your variable value

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Nguyen
Nguyen
2013-9-16

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