MATLAB Answers

Plotting two functions with ranges in one plot

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Wouter Eppink
Wouter Eppink on 28 Sep 2019
Commented: Matt J on 28 Sep 2019
Hello, I have trouble finding out how to put seperate ranges on my plot.
As of right now this is my code:
x=[0: 1: 6]
M1=9.*x-3.*x.^2
M2=-1.*(3.*(6-x).^2);
figure
plot(x, M1, x, M2)
grid
The first function's (M1) variable "x" should have ranges from 0 to 4 (x >= 0 and x < 4)
The second function's (M2) variable "x" should have ranges from 4 to 6 (x >= 4 and x < 6)
Anyways I need my plot to look like this:

  2 Comments

Catalytic
Catalytic on 28 Sep 2019
If you don't know how to generate "This", how did you obtain the left-hand plot above?
Wouter Eppink
Wouter Eppink on 28 Sep 2019
The eraser tool from an amazing piece of software called ms paint.

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Accepted Answer

Matt J
Matt J on 28 Sep 2019
Edited: Matt J on 28 Sep 2019
x1=0:4;
x2=4:6;
M1=9.*x1-3.*x1.^2;
M2=-1.*(3.*(6-x2).^2);
figure
plot(x1, M1, x2, M2);
ylim([-120,20]);
grid

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More Answers (2)

Catalytic
Catalytic on 28 Sep 2019
You could also edit away the data points you don't want
h=plot(x, M1, x, M2); ylim([-120,20]);
h(1).XData(6:7)=[]; h(1).YData(6:7)=[];
h(2).XData(1:4)=[]; h(2).YData(1:4)=[];

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Wouter Eppink
Wouter Eppink on 28 Sep 2019
However the awnser works fine for now. However when I'm putting more than two functions in one graph this way, I'd like to find a way to incorporate the range into the function in order to decrease the amount of extra variables

  1 Comment

Matt J
Matt J on 28 Sep 2019
Which of the 2 answers are you referring to?

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