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Jinquan Li


Last seen: 3 years ago |  Active since 2021

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How to plot graphs with the specific time domain
Hi, i am trying to plot 3 graphs with the specific time domian. Here's my code: t = -2*pi:0.01:2*pi; function y = f(t) y = (a...

3 years ago | 1 answer | 0

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Question


how to use repmat to plot?
i am plotting a graph of a unit step function: f(t) = u(t) - 2u(t - pi), for 0 <= t <= 2pi and i am trying to use repmat to mak...

3 years ago | 1 answer | 0

1

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Question


how to get the exact value?
I'm trying to use numerical Matlab approach tp find the integral of f = 5e^-t , for -1<t<2. Here's the code i tried: f5 = @(t) ...

3 years ago | 1 answer | 0

1

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Question


how to estimate/evaluate the integral of a constant value function?
For example, f = 5, for 0<t<1, zero otherwise. i tried the following code but it didn't work: syms t f = 10; int(f)

3 years ago | 2 answers | 0

2

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Question


Can fploy and ezplot a discrete time signal?
I'm trying to plot a discrete time signal : y[n] = 5𝛿(n)+3u(n-3) , for n=[-1:0.01:10] by using fplot or ezplot. Here's what I'v...

3 years ago | 1 answer | 0

1

answer

Question


plot discrete time domain signals
Given n=[-1:0.01:10]. Plot the discrete time domain signal: y[n]=e^(-n)*u(n). Below is my program but i'm not sure if it's cor...

3 years ago | 1 answer | 0

1

answer