MATLAB: Help on entering velocity formula

velocity

How would I enter "v= πe^(-0.25t) cos(πt)-0.25e^(-0.25t) sin(πt)" into my script ?

Best Answer

Try this:

fontSize = 20;
t = linspace(-3*pi, 3*pi, 800);
v= pi *exp(-0.25*t) .* cos(pi*t) - 0.25 .* exp(-0.25*t) .* sin(pi*t);
plot(t, v, 'b-', 'Linewidth', 3);
grid on;
xlabel('t', 'FontSize', fontSize);
ylabel('v', 'FontSize', fontSize);

Related Solutions

MATLAB: What is the code to plot this

syms t 
ezplot(exp(-0.3237*t)*cos(3.4836*t))

MATLAB: I need to plot the amplitude of the signals

Try not using so many elements - too many to display.

Try this:

clc;
close all;
clear;
workspace;
format long g;
format compact;
fontSize = 15;
%variables
Am=5; %message signal amplitude

Ac=10; %message signal amplitude
t= linspace(0, 0.04, 1500); %period
Fm=50; %message frequency
Fc=1000; %carrier frequency
%output graph preparation
m=Am*cos(2*pi*Fm*t); % Signal equation
c=Ac*cos(2*pi*Fc*t); % Carrier equation
%plot m(t) and its amplitude
subplot(2,3,1);
plot(t,m);
xlabel('time', 'FontSize', fontSize);
ylabel('m(t)', 'FontSize', fontSize);
title('Signal Equation', 'FontSize', fontSize);
% Put x axis in the right place.



ax = gca
ax.XAxisLocation = 'origin'
subplot(2,3,2);
plot(t,abs(m));
xlabel('time', 'FontSize', fontSize);
ylabel('m(t)', 'FontSize', fontSize);
title('Signal Amplitude', 'FontSize', fontSize);
%plot c(t) and its amplitude
subplot(2,3,3);
plot(t,c);
xlabel('time', 'FontSize', fontSize);
ylabel('c(t)', 'FontSize', fontSize);
title('Carrier Equation', 'FontSize', fontSize);
% Put x axis in the right place.
ax = gca
ax.XAxisLocation = 'origin'
subplot(2,3,4);
plot(t,abs(c));
xlabel('time', 'FontSize', fontSize);
ylabel('c(t)', 'FontSize', fontSize);
title('Carrier Amplitude', 'FontSize', fontSize);
% Put x axis in the right place.
ax = gca
ax.XAxisLocation = 'origin'
%Sketch the magnitude of the multiplication of m(t) with c(t).
y=m.*c;
subplot(2,3,5);
plot(t,y);
xlabel('time', 'FontSize', fontSize);
ylabel('m(t) .* c(t)', 'FontSize', fontSize);
title('Multiplication of m(t) with c(t)', 'FontSize', fontSize);
% Put x axis in the right place.
ax = gca
ax.XAxisLocation = 'origin'
subplot(2,3,6);
plot(t,abs(y));
xlabel('time', 'FontSize', fontSize);
ylabel('y(t)', 'FontSize', fontSize);
title('Amplitude of the multiplication', 'FontSize', fontSize);
% Set up figure properties:
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
% Get rid of tool bar and pulldown menus that are along top of figure.
set(gcf, 'Toolbar', 'none', 'Menu', 'none');
% Give a name to the title bar.
set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off')

Best Answer

Related Solutions

MATLAB: What is the code to plot this

MATLAB: I need to plot the amplitude of the signals

Related Question