How can I plot a one second sine wave at 1Hz frequency?

I need to plot a one second sine wave at 1Hz frequency.

tMin=0; 
tMax=1;
tArray = linspace(tMin, tMax, 1000);
freq = [1 5 10];
C= (tArray')*freq;
D=sin(C(:,1));
plot((tArray), D);
axis([0 1 -1.5 1.5]);

This produces a graph of a line but I need to fix it to create a normal one second sine wave.

Thanks, Andrew

Answer 1

[Star Strider]

Take out the subscript from ‘C’ in the plot call to plot all three:

tMin = 0; 
tMax = 1;
tArray = linspace(tMin, tMax, 1000);
freq = [1 5 10];
C = (tArray')*freq;
D = sin(C);                             % Plot All Three At Once
plot((tArray), D);
axis([0 1 -1.5 1.5]);

EDIT — To only plot the first two, the ‘C’ assignment changes to:

D=sin(C(:,1:2));                                % Plot Two At Once

and to plot only the first and third:

D=sin(C(:,[1 3]));                              % Plot Two At Once

So you can plot whatever ones you want by specifying them.