A function plotting issue with fplot

7 Ansichten (letzte 30 Tage)
John Jarvis
John Jarvis am 10 Mär. 2019
Kommentiert: John Jarvis am 12 Mär. 2019
I want to plot the function vs . I can get the result using fplot, however the x-range () is not
correct. My code is:
v1 = -2.63; v2 = -2.38; gamma=1;
T=[0:0.01:5];
k=pi/2;
l=-k;
w=-2*cos(k);
w1=-2*cos(l);
delta2 = @(T) v2-w+(gamma.*abs(T).^2);
delta1 = @(T) v1-w+gamma*abs(T).^2.*abs(delta2(T)-exp(1i.*k)).^2;
delta21 = @(T) v1-w1+(gamma.*abs(T).^2);
delta11 = @(T) v2-w1+gamma*abs(T).^2.*abs(delta21(T)-exp(1i.*l)).^2;
fplot(@(T) abs((exp(i*k)-exp(-i*k))/(1+(delta2(T)-exp(i*k)).*(exp(i*k)-delta1(T))))^2,[0,5],'g')
hold on
fplot(@(T) abs((exp(i*l)-exp(-i*l))/(1+(delta21(T)-exp(i*l)).*(exp(i*l)-delta11(T))))^2,[0,5],'r')
hold off
The output is alright but the x-axis range seems not correct. The correct figure (ignoring the middle dotted black curve) should look like
What I get is the following
I tried various ways but failed to fix the x-axis issue, what is the problem here?. Any help is highly appreciated. Thanks.
  2 Kommentare
Geoff Hayes
Geoff Hayes am 10 Mär. 2019
John - is the output correct? If it is, what is the x-axis issue? Why do you think it should look like the first figure?
John Jarvis
John Jarvis am 12 Mär. 2019
Fixed it. It was an error in writing. Thanks.

Melden Sie sich an, um zu kommentieren.

Antworten (0)

Produkte


Version

R2014a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by