How do I get my code to display the associated x values for maximum and minimum
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
In addition, How do I get it to label the coordinates in the graph it makes? I tried getting it to display Xmax or Xmin, but it says not defined.
a = -7.0;
b = 1.0;
c = 2.0;
d = 20.0;
e = 2.0;
f = 5.0;
p = @(x) c * x.^3 + d * x.^2 + e * x + f;
CP = quadratic(3 * c, 2 * d, e);
crit_pt1 = CP(1);
crit_pt2 = CP(2);
if isreal(crit_pt1)
disp('Crit Point 1:');
disp(crit_pt1);
disp('p(Crit Point 1):');
disp(p(crit_pt1));
disp('Crit Point 2:');
disp(crit_pt2);
disp('p(Crit Point 2):');
disp(p(crit_pt2));
else
disp('The critical points are complex.');
end
disp('Left Endpoint:');
disp(a);
disp('p(Left Endpoint):');
disp(p(a));
disp('Right Endpoint:');
disp(b);
disp('p(Right Endpoint):');
disp(p(b));
Q=[p(a),p(b),p(crit_pt1),p(crit_pt2)];
disp('p(Xmax):');
disp(max(Q));
disp('p(Xmin):');
disp(min(Q));
delta = (b - a) / 100;
x = a:delta:b;
y = p(x);
plot(x, y)
0 Kommentare
Akzeptierte Antwort
Matt J
am 21 Sep. 2014
You can use the text() command. Or, you can do
set(axis_handle,'XTick',whatever)
to have the x-axis show "whatever".
4 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Interactive Control and Callbacks finden Sie in Help Center und File Exchange
Produkte
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!