Plot, graph a polynomial

here is my code. it keeps giving me errors

t = 0:10:1000;
x= {(3*sin(t) + 10*sin(t/10) + 500*sin(2*pi*t/1000))};

plot(x,t)

Answer 1

[Geoff Hayes]

Joseph - the error is

 Error using plot
 Conversion to double from cell is not possible.

The resolution is to remove the braces around your initialization of x so that it is not a cell array. Change this line of code to

 x = 3*sin(t) + 10*sin(t/10) + 500*sin(2*pi*t/1000);

and re-plot the data.

[Joseph]

I did that,and the error message is gone, but nothing is showing up on the graph

[Geoff Hayes]

Joseph - something should appear (and it did for me) so please verify that your t and x are populated as expected. Try the following as well

 clear all;  % clears all local variables
 close all;  % closes all open figures
 t = 0:10:1000;
 x= 3*sin(t) + 10*sin(t/10) + 500*sin(2*pi*t/1000);
 plot(x,t)

or, as Image Analyst has shown, as

 plot(t,x)

so that time is along the horizontal axis.

Answer 2

[Image Analyst]

Joseph, try this:

t = 0:10:1000;
x= 3*sin(t) + 10*sin(t/10) + 500*sin(2*pi*t/1000);
% Now plot
plot(t, x, 'bo-', 'LineWidth', 2);
% Make it fancy.
grid on;
xlabel('t', 'FontSize', 25);
ylabel('x', 'FontSize', 25);
title('x vs. t', 'FontSize', 25);
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);