Plotting 2D graph problem with x-axis spacing.

Question

0 个投票

I want to plot y = 2*exp((t.^2/)2) in MATLAB in the range of 0 to 3. I can't seem to get the vector length correctly and getting:

error using plot. Vectros must be the same length.

I understand that the vectors need to be the same length, but cannot actually implement this.

Code:

x = 0:0.1:3;
y = 2*(exp((t.^(2))/2));
plot (x,y,'r');

Without the 'x variable, the plot comes to:

plot (y,'r');

Comparing this to an online plotting tool for

gives:

Which does not seem to be exactly what I am getting as a result in MATLAB.

Many thanks for any suggestions.

2 个评论
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KALYAN ACHARJYA 2018-3-17

编辑：KALYAN ACHARJYA 2018-3-17

From the above expression, x is independent with y. And what about the x range. Clarify "A Spacing" means?

Ryan Rizzo 2018-3-17

编辑：Ryan Rizzo 2018-3-17

Yes, I see that x is independent w.r.t y. I simply want to get the x-axis range from 0 to 3. I will edit my question. That was a typo from my end

Answer 1

KALYAN ACHARJYA 2018-3-17

编辑：KALYAN ACHARJYA 2018-3-17

0 个投票

%Note: range t from - to +
t=-2:0.1:2;
%x=-3:0.1:3;
y=2.*(exp((t.^(2))/2));
plot(t,y,'linewidth',3);