Why won't my plot appear on the graph?

Hello

I am currently trying to plot a function, but the line does not appear on the graph. When I display the x and y values, everything is being computer correctly, but it will not appear on the graph. My code is below:

figure;

 
for i = 0: 360
    
        a = 10; 
        w1 = 360;  
        t1 = i; 
        
        
        t2 = atan((tan(t1))/(cos(a))); 
        
        num = w1*sec(t1).^2;
        den = sec(t2).^2*cos(a);
        
        w2 = num./den; 
        
        display (i); 
        display (w2); 
 
 
        plot (t1, w2, 'b-','LineWidth', 3);
        
        hold on; 
end

Thank You!

Answer 1

[Star Strider]

It can, however since you are plotting points rather than lines, you must use a marker.

Change the plot call to:

plot (t1, w2, 'b.','LineWidth', 3);

and the dots magickally appear!

If you want to plot a line, this works:

for i = 0: 360
    
        a = 10; 
        w1 = 360;  
        t1 = i; 
        
        
        t2 = atan((tan(t1))/(cos(a))); 
        
        num = w1*sec(t1).^2;
        den = sec(t2).^2*cos(a);
        
        w2(i+1,:) = num./den; 
        t1v(i+1) = t1;
end

figure
plot (t1v, w2, 'b-','LineWidth', 3);

There are of course much more efficient ways to do this.