How can I find the coefficients of this polynomial?
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I need to find the coefficients of the polynomial
that passes through the points (0, 10), (1, 35), (3, 31) and (4, 2).
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/416698/image.png)
I appreciate it a lot if anyone can help.
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Respuestas (1)
Stephan
el 17 de Nov. de 2020
Editada: Stephan
el 17 de Nov. de 2020
x = [0 1 3 4];
y = [10 35 31 2];
coeffs = polyfit(x,y,3)
plot(0:0.1:5,polyval(coeffs,0:0.1:5),'b-')
hold on
scatter(x,y,'bo')
hold off
2 comentarios
John D'Errico
el 17 de Nov. de 2020
Probably should not do what is clearly homework, with no effort made by the poster.
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