plotting piecewise periodic function

3 visualizaciones (últimos 30 días)
omar amr
omar amr el 31 de Dic. de 2021
Respondida: Image Analyst el 31 de Dic. de 2021
How would I plot this function on the range 0<=t<=20?
x= 2(1-t), 0<=t<=1
x= t-1, 1<t<=3

Respuestas (2)

Jonas
Jonas el 31 de Dic. de 2021
you could generate the values for one cycle and then repeat the values using repmat()

Image Analyst
Image Analyst el 31 de Dic. de 2021
Your question did not specify what the value of x is for t > 3 so I'll assume it's zero.
Try this:
% How would I plot this function on the range 0<=t<=20?
% x= 2(1-t), 0<=t<=1
% x= t-1, 1<t<=3
numElements = 512; % Whatever resolution you want.
% Get t axis.
t = linspace(0, 20, numElements);
% Initialize x to all zeros.
x = zeros(1, numElements);
% Get the first range.
indexRange1 = t >= 0 & t <= 1;
x(indexRange1) = 2 * (1 - t(indexRange1));
% Get the second range.
indexRange2 = t > 1 & t <= 3;
x(indexRange2) = t(indexRange2) - 1;
% Plot x
plot(t, x, 'b-', 'LineWidth', 2);
grid on;
fontSize = 18;
title('x vs. t', 'FontSize', fontSize);
xlabel('t', 'FontSize', fontSize);
ylabel('x', 'FontSize', fontSize);

Etiquetas

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by