Graph gives warning : function behaves unexpectedly on array inputs. What does this mean?
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Stephanie Mendoza
am 17 Sep. 2022
Kommentiert: Chris
am 17 Sep. 2022
%plot to view graph
g =@(x) 3*x^3 +x^2 -2*x - 5;
figure(2)
o = -40:40;
fplot(g,[-40 40])
0 Kommentare
Akzeptierte Antwort
Chris
am 17 Sep. 2022
Bearbeitet: Chris
am 17 Sep. 2022
You are using matrix (linear algebra) operators, which include * and ^. If you try to calculate the function directly, You get an error because raising a vector to a power doesn't work.
g =@(x) 3*x^3 +x^2 -2*x - 5;
o = -40:40;
y = g(o);
To operate on each x value individually, use elementwise operators (e.g, .^ .* ./ )
g =@(x) 3 .* x .^ 3 + x .^ 2 - 2 .* x - 5;
fplot(g,[-40,40])
3 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Graph and Network Algorithms finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!