This example shows how to use the Find block to find nonzero elements in an array. In the following model, the block is configured to output both the one-based linear index and the value of each nonzero element.

ans = 

  Simulink.SimulationOutput:
                   tout: [51x1 double] 

     SimulationMetadata: [1x1 Simulink.SimulationMetadata] 
           ErrorMessage: [0x0 char]