how to make my graph in center without moving it or dragging it to the center

fprintf('Please choose any type of signal below.\n1. Impulse\n2. Step function\n3. DC Source\n4. Signum function\n5. Rising exponent function\n6. Cosine function\n7. Sine function\n8. Square function\n9. Triangular function\n10. Symmetrical decaying exponent function')

s=input('\nSignal number: ');

a=input('Please choose any of these signal transformation\n1. Time scale\n2. Time shift\n3. Time inversion\n4. Amplitude scale\n5. Amplitude Shift\n6. Amplitude inversion\n');

switch (s)

case 7

A=input('Enter Amplitude:');

F= input('Enter frequency:');

t=0:0.01:4;

y= A*sin(2*pi*F*t);

plot(t,y,'b')

title ('Sine Wave')

xlabel ('Time')

ylabel('Amplitude')

grid on

hold on

switch (a)

case 1 %time scale

z= input('Enter time scale value:');

y= A*sin(2*pi*F*t);

plot((z\t),y,'k')

grid on

hold off

case 2 %time shifting

z= input('Enter time shifting value:');

y= A*sin(2*pi*F*t);

plot((t-z),y,'k')

grid on

hold off

case 3 %time inversion

y= A*sin(2*pi*F*(-t));

plot(t,y,'g')

grid on

hold off

case 4 %amplitude scale

z=input('Enter amplitude scale value:');

y= z*(A*sin(2*pi*F*t));

plot(t,y,'k');

grid on

hold off

case 5 %amplitude shift

z=input('Enter amplitude shift value:');

y= (A*sin(2*pi*F*t))-z;

plot(t,y,'k');

grid on

hold off

case 6 %amplitude inversion

y= -A*sin(2*pi*F*t);

plot(t,y,'k')

grid on

hold off

end

instead of this graph,

i want the graph to be like this automatically

Answer 1

[DGM]

There's no need for all this code repetition. The cases should not be nested. Create the unmodified vectors, create the modified copies, then plot.

fprintf('Please choose any type of signal below.\n1. Impulse\n2. Step function\n3. DC Source\n4. Signum function\n5. Rising exponent function\n6. Cosine function\n7. Sine function\n8. Square function\n9. Triangular function\n10. Symmetrical decaying exponent function')
s = input('\nSignal number: ');
a = input('Please choose any of these signal transformation\n1. Time scale\n2. Time shift\n3. Time inversion\n4. Amplitude scale\n5. Amplitude Shift\n6. Amplitude inversion\n');

switch (s)
    % ... other cases
    
    case 7
        A = input('Enter Amplitude: '); % trailing space for clarity
        F = input('Enter frequency: ');
        t = 0:0.01:4;
        y = A*sin(2*pi*F*t);
        figtitle = 'Sine Wave'; % for later
        
    % ... other cases
end

switch (a)
    % ... other cases
    
    case 2 %time shifting
        z = input('Enter time shifting value: ');
        tmod = t-z;
        ymod = y;
    
    % ... other cases
    	
    case 4 %amplitude scale
        z = input('Enter amplitude scale value: ');
        tmod = t;
        ymod = z*y;
        
    % ... other cases
end

% do the plotting last

plot(t,y,'b')
hold on
plot(tmod,ymod,'k')
hold off

title(figtitle)
xlabel('Time')
ylabel('Amplitude')
grid on

% adjust limits to create padding
xlim(xlim + [-1 1]*range(xlim)*0.2)
ylim(ylim + [-1 1]*range(ylim)*0.2)

[Mya]

I've followed above coding but there's no graph plotted :(

[Mya]

ouh ok i know hich part i did wrong hihi....i accidentally put the plot coding before end

[Mya]

tq so much for sharing this