How to make a local function that returns a vector

5 次查看（过去 30 天）
Kosuke
Kosuke 2023-12-31
评论： Dyuman Joshi 2024-1-1
I found a mistake in my question. I edited a part and the part is now underlined. Sorry for confusing way to ask.
Hello,
I wnat to make a local function that returns a vector or vectors.
For example, I will give the initial value of a vector, a(1,1), then the local function calculates a(1,2) based on the former value, a(1,1) until the last slot a(1,N), which will be calculated based on a(1,N-1).
I made a local function using function [y1, y2, ... , yN]=myfunction(x1, x2, ... , xM), but it did not work correctly. Is there any function or expression that can return a vector or vectors as the output?
I will attach my code.
% parameters
N=100;
div=0.1;
p=sqrt(3);
q=0.5;
r=2;
% vectors and initial values
a=zeros(1,N);
b=zeros(1,N);
a(1,1)=5;
b(1,1)=0.1;
% function
[a,b]=fcn2(N,p,q,r);
% arb. function
function [a,b]=fcn2(N,p,q,r)
for i=1:N
ka1=p+q*r;
kb1=p-q*r;
ka2=ka1+p*q;
kb2=kb1-q/r;
a(1,i+1)=a(1,i)+ka1*ka2;
b(1,i+1)=b(1,i)+kb1/(kb2+1);
end
end

请先登录，再回答此问题。

采纳的回答

Torsten
Torsten 2023-12-31
编辑：Torsten 2023-12-31
Ran in:
% parameters
N=100;
div=0.1;
p=sqrt(3);
q=0.5;
r=2;
% Initial values
astart=5;
bstart=0.1;
% function
[a,b]=fcn2(N,p,q,r,astart,bstart);
plot(1:numel(a),[a;b])
grid on
% arb. function
function [a,b]=fcn2(N,p,q,r,astart,bstart)
ka1=p+q*r;
kb1=p-q*r;
ka2=ka1+p*q;
kb2=kb1-q/r;
a = astart + (0:N)*ka1*ka2;
b = bstart + (0:N)*kb1/(kb2+1);
end
  4 个评论
显示 2更早的评论
Dyuman Joshi
Dyuman Joshi 2024-1-1
Hello @Kosuke, if this answer solved your problem, please consider accepting the answer.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 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