How can I find the coefficients of this polynomial?
1 次查看(过去 30 天)
显示 更早的评论
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.
0 个评论
回答(1 个)
Stephan
2020-11-17
编辑:Stephan
2020-11-17
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 个评论
John D'Errico
2020-11-17
Probably should not do what is clearly homework, with no effort made by the poster.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Polynomials 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!