Is this code ok?It asked to plot function together with hold on...syms x y; t=-2:0.1:2 n=-2:0.1:2 x=2*sin(4*pi*t); y=2*sin(4*pi*n); plot(t,x,'r',n,y,'g'); hold on; title('function'); legend('x function', 'y function'); grid on;

3 vues (au cours des 30 derniers jours)
nickey
nickey le 23 Avr 2013
Is this code ok?It asked to plot function together with hold on. But when I run code,I have just y function ?
syms x y;
t=-2:0.1:2
n=-2:0.1:2
x=2*sin(4*pi*t);
y=2*sin(4*pi*n);
plot(t,x,'r',n,y,'g');
hold on;
title('function');
legend('x function', 'y function');
grid on;

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Réponses (2)

Walter Roberson
Walter Roberson le 23 Avr 2013
You only get one plot line because your "t" and "n" are the same, and you apply the same formula to each of them, so the results are identical.
bym
bym le 23 Avr 2013
  • no need for syms x y
  • x & y are the same thing
perhaps you meant
y = 2*cos(4*pi*t)

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