清空筛选条件
清空筛选条件

How to plot 2 D powell function with the code given below?

3 次查看（过去 30 天）
huma
huma 2017-4-23
编辑： amine&& 2017-4-25
% code
function y = powell(x)
%
% Powell function
% Matlab Code by A. Hedar (Nov. 23, 2005).
% The number of variables n should be adjusted below.
% The default value of n = 24.
%
n = 24;
m = n;
for i = 1:m/4
fvec(4*i-3) = x(4*i-3)+10*(x(4*i-2));
fvec(4*i-2) = sqrt(5)*(x(4*i-1)-x(4*i));
fvec(4*i-1) = (x(4*i-2)-2*(x(4*i-1)))^2;
fvec(4*i) = sqrt(10)*(x(4*i-3)-x(4*i))^2;
end;
fvec = fvec';
y = norm(fvec)^2;

请先登录，再回答此问题。

回答（2 个）

amine&&
amine&& 2017-4-23
Hello, if you have a function like
function y = powell(x)
y = x+1;
you can use,
f=@(x)powell(x);
fplot(f)
huma
huma 2017-4-24
Thanks for ur suggestion but i needed a surface plot.If you could help me with that it would be great help.
  1 个评论
amine&&
amine&& 2017-4-25
编辑：amine&& 2017-4-25
What do you mean by surface plot. Your function contains only one output then you can not desin a surface plot.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by