How to code equation
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Cesar Cardenas
on 24 Jan 2023
Hello, just wondering if this equation could be coded like this:
Any feedback will be greatly appreciated. Thanks
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1273155/image.png)
m = 10e-3
a = 0.05
c = 0.1
x(t) = m/a e^-(c/a)t
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Accepted Answer
Sulaymon Eshkabilov
on 24 Jan 2023
A couple of small errors have been corrected:
m = 10e-3;
a = 0.05;
c = 0.1;
x = @(t)(m/a)*exp(-(c/a)*t);
t = linspace(0,1.3);
plot(t, x(t))
xlabel('t')
ylabel('x(t)')
grid on
More Answers (3)
Sulaymon Eshkabilov
on 27 Jan 2023
Put both functions in plot() command or use hold on:
m = 10e-3;
a = 0.05;
c = 0.1;
x1 = @(t)(m/a)*exp(-(c/a)*t);
x2 = @(t)(m/a)*1-exp(-(a/m)*t);
t = linspace(0,1.5);
plot(t, x1(t), 'r-', t, x2(t), 'b-.', 'linewidth', 2)
xlabel('$t$', 'Interpreter', 'latex')
ylabel('$x(t)$', 'Interpreter', 'latex')
legend('$x_1(t)$', '$x_2(t)$','Interpreter', 'latex', 'location', 'SE')
grid on
%% Alternative solution:
m = 10e-3;
a = 0.05;
c = 0.1;
x1 = @(t)(m/a)*exp(-(c/a)*t);
x2 = @(t)(m/a)*1-exp(-(a/m)*t);
figure
fplot(x1, [0, 1.5], 'r-', 'linewidth', 2)
hold on
fplot(x2, [0, 1.5], 'b-.', 'linewidth', 2)
xlabel('$t$', 'Interpreter', 'latex')
ylabel('$x(t)$', 'Interpreter', 'latex')
legend('$x_1(t)$', '$x_2(t)$','Interpreter', 'latex', 'location', 'SE')
grid on
Nisar
on 15 May 2024
clc;
T=10;
Fs=1;
t=-2*T:1/(10*Fs):2*T;
rect_pulse_fft = fftshift(fft(rect_pulse));
L=length(t);
f=Fs*(-L/2:(L/2-1))/L;
rect_pulse_fft=fftshift(fft(rect_pulse));
subplot(2,1,1);
plot(t,rect_pulse);
xlabel('Time(s)');
ylabel('Amplitude');
title('time Domain Representation of Rectangular pulse');
subplot(2,1,2);
plot(f,abs(rect_pulse_fft));
xlabel('frequency(Hz)');
ylabel('Magnitude');
title('frequemcy domain representation of rectangular pulse');
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