y(n) = x(2n) + x(-n) where x(n) = {2,4,-3,1,-5,4,7} check whether it is energy or power in matlab

To check whether y(n) = x(2n) + x(-n) is an energy or power signal in MATLAB, we need to compute the sum of squared magnitudes.

If the sum is finite, the signal is an energy signal. If the sum is infinite or the average power is finite and non-zero, the signal is a power signal.

Here is how you can check whether the signal y(n) is an energy or power signal in MATLAB:

main.m
x = [2, 4, -3, 1, -5, 4, 7]; % Given signal x(n)
n = 0:length(x)-1; % Time indices

% Calculate y(n) = x(2n) + x(-n)
y = x(2*n + 1) + x(-n + 1);

% Compute the sum of squared magnitudes
energy = sum(abs(y).^2);

% Calculate the average power
power = energy / length(n);

if isfinite(energy)
    disp('Signal y(n) is an energy signal');
elseif isfinite(power) && power ~= 0
    disp('Signal y(n) is a power signal');
else
    disp('Signal y(n) is neither an energy nor a power signal');
end
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In the above code, we use indexing to calculate y(n) = x(2n) + x(-n). Then, we compute the sum of squared magnitudes of y(n) and store it in the variable "energy". After that, we calculate the average power by dividing the energy by the length of the signal. Finally, based on the calculated energy and power, we determine whether the signal is an energy or power signal.

Make sure to replace x with your actual signal values.

Note: The given signal x(n) = {2,4,-3,1,-5,4,7} is a discrete sequence, not a continuous-time signal.