Question

1) Write a script that plots the function $x(t) = u(t) + 2(t - 3)u(t - 3)$ over the time range 0 to 6 seconds. Do not use Matlab's built-in function stepfun. Label axes. 2) Assuming the diode in the circuit below is ideal, plot the voltage $v(t)$ over the range -1 to 5 seconds. Label axes. + + 25sin(2$\pi$1.5$t$) v(t) 3) Write a function with the first line: function [v,t] = expsine(A,Tau,T,Phi) that calculates and plots the decaying exponential signal, $v(t) = Ae^{-t/\tau}cos(\frac{2\pi}{T}t + \phi)$ where Tau = $\tau$ is the decay time constant, T is the period of oscillation, and Phi = $\phi$ is the phase shift. The time vector, t should have 200 points and should range from 0 to 4 time constants. The axes should be labeled. Write a script that calls the function using the parameters A = 4, Tau = 12, T = 2, and Phi = $\frac{\pi}{4}$.

          1) Write a script that plots the function $x(t) = u(t) + 2(t - 3)u(t - 3)$ over the time range 0 to 6 seconds. Do not use Matlab's built-in function stepfun. Label axes.
2) Assuming the diode in the circuit below is ideal, plot the voltage $v(t)$ over the range -1 to 5 seconds. Label axes.
+ 
+ 
25sin(2$\pi$1.5$t$)
v(t)
3) Write a function with the first line: function [v,t] = expsine(A,Tau,T,Phi) that calculates and plots the decaying exponential signal, 
$v(t) = Ae^{-t/\tau}cos(\frac{2\pi}{T}t + \phi)$
where Tau = $\tau$ is the decay time constant, T is the period of oscillation, and Phi = $\phi$ is the phase shift. The time vector, t should have 200 points and should range from 0 to 4 time constants. The axes should be labeled.
Write a script that calls the function using the parameters A = 4, Tau = 12, T = 2, and Phi = $\frac{\pi}{4}$.

1) Write a script that plots the function x(t) = u(t) + 2(t - 3)u(t - 3) over the time range 0 to 6 seconds. Do not use Matlab's built-in function stepfun. Label axes.
2) Assuming the diode in the circuit below is ideal, plot the voltage v(t) over the range -1 to 5 seconds. Label axes.
+
+
25sin(2π1.5t)
v(t)
3) Write a function with the first line: function [v,t] = expsine(A,Tau,T,Phi) that calculates and plots the decaying exponential signal,
v(t) = Ae^-t/τcos((2π)/(T)t + ϕ)
where Tau = τ is the decay time constant, T is the period of oscillation, and Phi = ϕ is the phase shift. The time vector, t should have 200 points and should range from 0 to 4 time constants. The axes should be labeled.
Write a script that calls the function using the parameters A = 4, Tau = 12, T = 2, and Phi = (π)/(4).

Added by William K.

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