calculate energy and power of a discrete and continious signal in matlab in matlab

To calculate the energy and power of a discrete or continuous signal in MATLAB, you can follow these steps:

1. For a discrete signal:

   • Define your signal as a vector in MATLAB.
   • Calculate the energy using the formula: energy = sum(abs(signal).^2).
   • Calculate the power using the formula: power = energy / length(signal).

2. For a continuous signal:

   • Define your signal as a function in MATLAB.
   • Calculate the energy using the formula: energy = integral(@(t) abs(signal(t)).^2, tstart, tend), where tstart and tend are the start and end times of the signal.
   • Calculate the power using the formula: power = energy / (tend - tstart).

Here's an example for a discrete signal:

main.m
% Define the discrete signal
signal = [1, 2, -2, 1, 0];

% Calculate the energy
energy = sum(abs(signal).^2);

% Calculate the power
power = energy / length(signal);
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And here's an example for a continuous signal:

main.m
% Define the continuous signal as a function
signal = @(t) exp(-t).*sin(2*pi*t);

% Define the start and end times of the signal
tstart = 0;
tend = 10;

% Calculate the energy
energy = integral(@(t) abs(signal(t)).^2, tstart, tend);

% Calculate the power
power = energy / (tend - tstart);
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Make sure to replace signal with your actual signal, and adjust the integration limits (tstart, tend) for the continuous signal based on the signal's characteristics.