How to Subtract Consecutive Values in Array in Simulink

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Hi Everyone, I am wondering what is the correct way to do subtraction of consecutive values of an array in Simulink? For example, if an output of a block is [1,2,3,4,...] and I need to calculate [1,2-1,3-2,4-3,...]. Knowing, both vectors are needed to execute the Simulink scheme. what is the best way to do that? please help
Thanks in advance,

Accepted Answer

Aquatris on 22 Jul 2018
You can use a time delay block and use fixed step solver. Set the time delay to be exactly the time step used by the solver. You connect the signal to the time delay block. Then to get the vector you want, you subtract output of time delay block from the original signal.

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