My piecewise function graph is not showing

6 vues (au cours des 30 derniers jours)
John Grand
John Grand le 25 Mai 2021
Commenté : Asmit Singh le 26 Mai 2021
I'm trying to plot the the function below, here is what I have
f(x) = 2x x ∈ [0, 0.5]
2x − 1 x ∈ (0.5, 1]
syms x
f(x)=piecewise((0<=x)&(x<=0.5),2*x,(0.5<=x)&(x<=1),2*x(-1),6);
fplot(f(x));
grid on;

Réponse acceptée

Asmit Singh
Asmit Singh le 25 Mai 2021
It is my understanding that you need to visualize the function you have provided as text, ie
The code that you have provided, mentions 2*x(-1) instead of 2*x-1. The following code illustrates the changes :
syms x
f(x)=piecewise((0<=x)&(x<=0.5),2*x,(0.5<=x)&(x<=1),2*x-1,6);
fplot(f(x));
grid on;
  2 commentaires
John Grand
John Grand le 25 Mai 2021
ohhh i see, but why is there a 6 at the end?
Asmit Singh
Asmit Singh le 26 Mai 2021
The 6 at the end denotes the value of the functions, when none of the conditions are matched, I assumed that it was your default value. You can have a look at the documentation for the piecewise function for further details.

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