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A causal system:-
is a system where the output depends on past and current inputs but not future inputs i.e. the output 
only depends on the input 
for values of 
.
or in simple, the right side of sequence in a system is causal system!!
A causal system:-
is a system where the output depends on past and current inputs but not future inputs i.e. the output only depends on the input for values of .
or in simple, the right side of sequence in a system is causal system!!
None niether Causal nor Non-Causal
yes
A SYSTEM Iis said to be causal if the present valkue cof the output siugnal depends only on the present and past values of the input signal.examples of causal systems 1.y[n]=2(x[n]+x[n-1]+x[n-2]); 2.it is example of non causal system y[n]=x[n+1]; A system is said to be causal if the present value of the output signal depends only on the present and past values of the input signal.examples of causal systems 1.y[n]=2(x[n]+x[n-1]+x[n-2]); 2.it is example of non causal system y[n]=x[n+1];
I think it would be a derivative controller.
