Coding to find difference between two lines on a x y plane

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Eddy Ramirez
Eddy Ramirez el 18 de Oct. de 2020
Respondida: Manvi Goel el 29 de Oct. de 2020
is there a way to generate a code on MatLab that will find the difference between two different lines?
For example, I have a straight line (linear) with the following points (-10,1) (10,1) and I have a nonlinear line on the x y plane and I need to find the difference between the linear and nonlinear curve
  2 comentarios
KSSV
KSSV el 18 de Oct. de 2020
Editada: KSSV el 18 de Oct. de 2020
Do you have points i.e (x ,y) for the nonlinesr curve?
If so, make points for line equal in number to curve with same x values...and subtract the y-values.
VBBV
VBBV el 18 de Oct. de 2020
% if true
% code
% end
K = 2.5;
X = linspace(-10,10,100);
Y = K*((X/20)).^3;
Ly = ones(1,100);
Diff = Ly - Y;
plot(X,Diff,'r',X,Ly,'k',X,Y,'b');
legend('Diff','linear','nonlinear');

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Respuestas (1)

Manvi Goel
Manvi Goel el 29 de Oct. de 2020
You can plot the difference between the two lines by simply passing the second argument to the plot function as y - z where y and z are the two lines respectively.
X = linspace(-10,10,100); %line 1
Y = sin(X); %line 2
Z = ones(1,100);
plot(X, Y - Z); %plot for the difference

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