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nickey

nickey (view profile)

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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;

Asked by nickey

nickey (view profile)

on 23 Apr 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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2 Answers

Walter Roberson

Walter Roberson (view profile)

Answer by Walter Roberson

Walter Roberson (view profile)

on 23 Apr 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.

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bym

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Answer by bym

bym (view profile)

on 23 Apr 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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