Error out of range

Hi there, can i know when i run simulink process, there is ana erroe statement like this 'The expression: sin(u(1)*exp(2.3*(-u(2)))) in 'test_switch/Fcn' has a subscript that is out of range'

what is the meaning of this?

Answer 1

[Walter Roberson]

It means that "u" is expected to be a vector, but it does not have at least 2 elements.

[fariz]

oh i see. so its a vector related problem. thanks for the help.

Answer 2

[Sachin Ganjare]

What is u(1) & u(2)? Please elaborate.

[fariz]

no just an input, the equation i got from a friend, and it seems that he got it wrong with it. so just need to do a new equation for the process.