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i need a block for save a value for comparison with itself in during simulation

i need a block for save a value for comparison with itself in during simulation

i need a block for save a value for comparison with itself in during simulation

(OP)
Hello all.
i am new to matlab and simulink. i want to sample a variable at the time and as the solution progresses compare new value to the older one.
is any block for that?



thanks
matlab and simulink 2015a

RE: i need a block for save a value for comparison with itself in during simulation

You can use the Memory block to delay the time step by 1 time step. You can then compare in many ways.

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