MATLAB: Plot function over two intervals

functionhomeworkintervalMATLABplot

Hi, I'm trying to plot an interval funciton, where f(x) = 1 from -1 <= x <= 0 and f(x) = -1 from 0 < x < 2, and f(x) = 0 otherwise. I'm not sure how to setup the intervals to do this.

Best Answer

m = 500 ; 
x = linspace(-1,3,m) ; 
f = zeros(size(x)) ; 
f(x>=-1 & x <=0) = 1 ; 
f(x>=0 & x <2) = -1 ; 
plot(x,f)

Related Solutions

MATLAB: Plotting two linear equations

Use ‘logical indexing’:

x = linspace(-5,2);
f = @(x) (-1).*(x < -1) + (x.^2 + x).*((x >= -1) & (x < 2));
figure(1)
plot(x, f(x))
grid

MATLAB: How to plot below function f

This is how I would do it:

f = @(x) (x/4).*((x > 0) & (x < 1)) + (x/3).*(x >= 1);
t = linspace(-5, 5);
figure
plot(t, f(t))
grid

Best Answer

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MATLAB: Plotting two linear equations

MATLAB: How to plot below function f

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