How to do the following two for loop?

How to do the following two for loop?

   i=0.1:0.1:0.9 ;
    M=[1 1 1 1 1 1];
first outer loop :
In the 1st inner loop Assign i=0.9 on the first element, then in the 2nd inner loop Assign 0.8 on the first element till 0.1

then 2nd outer loop 
In the 1st inner loop Assign i=0.9 on the 2nd element, in the 2nd inner loop Assign 0.8 on the 2nd element till 0.1
.
.
and so on .. till the 6th outer loop

Answer 1

[Torsten]

You mean

i=0.1:0.1:0.9 ;
M = [i.',ones(numel(i),5)]

M = 9×6

0.1000 1.0000 1.0000 1.0000 1.0000 1.0000 0.2000 1.0000 1.0000 1.0000 1.0000 1.0000 0.3000 1.0000 1.0000 1.0000 1.0000 1.0000 0.4000 1.0000 1.0000 1.0000 1.0000 1.0000 0.5000 1.0000 1.0000 1.0000 1.0000 1.0000 0.6000 1.0000 1.0000 1.0000 1.0000 1.0000 0.7000 1.0000 1.0000 1.0000 1.0000 1.0000 0.8000 1.0000 1.0000 1.0000 1.0000 1.0000 0.9000 1.0000 1.0000 1.0000 1.0000 1.0000

?

[M]

@Torsten nope, I want to do the following:

first outer loop :

perform i=0.9 on the first element, then perform 0.8 on the first element till 0.1

then 2nd outer loop

perform i=0.9 on the 2nd element, then perform 0.8 on the 2nd element till 0.1

.

.

and so on .. till the 6th outer loop

[Image Analyst]

What does it mean to "perform i=0.9 on the first element,"???

Do you mean "Assign i=0.9 to the first element"?

[M]

Yes assign @Image Analyst

[Torsten]

How to do the following two for loop? and save the results in every iteration?

And what are the results ? You mean: save the 9*6=54 M-vectors in a big matrix of size 54x6 ?

[M]

@Torsten, nope I meant the results of the rest of the program in each itertation

[Torsten]

M = ones(1,6);
result = zeros(9,6);
for i = 1:6
  for j = 9:-1:1
    M(i) = 0.1*j;
    M
    % Do some computations and save result in matrix "result"
    %result(j,i) = ...;
  end 
  M(i) = 1.0;
end

M = 1×6

0.9000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.8000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.7000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.6000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.5000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.4000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.3000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.2000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

0.1000 1.0000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.9000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.8000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.7000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.6000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.5000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.4000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.3000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.2000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 0.1000 1.0000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.9000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.8000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.7000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.6000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.5000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.4000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.3000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.2000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 0.1000 1.0000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.9000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.8000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.7000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.6000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.5000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.4000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.3000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.2000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 0.1000 1.0000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.9000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.8000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.7000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.6000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.5000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.4000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.3000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.2000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 0.1000 1.0000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.9000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.8000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.7000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.6000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.5000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.4000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.3000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.2000

M = 1×6

1.0000 1.0000 1.0000 1.0000 1.0000 0.1000

[M]

@Torsten, this didnt work

I want to do the following regardless the saving part...

How to do the following two for loop?

i=0.1:0.1:0.9 ;

M=[1 1 1 1 1 1];

first outer loop :

In the 1st inner loop Assign i=0.9 on the first element, then in the 2nd inner loop Assign 0.8 on the first element till 0.1

then 2nd outer loop

In the 1st inner loop Assign i=0.9 on the 2nd element, in the 2nd inner loop Assign 0.8 on the 2nd element till 0.1

.

.

and so on .. till the 6th outer loop

[Torsten]

That's exactly what the code does (see above).

Or do you want the element of the outer loop remain at 0.1 instead of resetting it to 1 ?

Then delete the line

M(i) = 1.0;

[M]

@Torsten yes i deleted that line and now its working good. Thanks

Answer 2

[Image Analyst]

Don't call variables "i" -- it's the imaginary constant.

Try this, for example to multiply M by 2

vec = 0.1:0.1:0.9

vec = 1×9

0.1000 0.2000 0.3000 0.4000 0.5000 0.6000 0.7000 0.8000 0.9000

M = [vec 1 1 1 1 1]

M = 1×14

0.1000 0.2000 0.3000 0.4000 0.5000 0.6000 0.7000 0.8000 0.9000 1.0000 1.0000 1.0000 1.0000 1.0000

result = M * 2

result = 1×14

0.2000 0.4000 0.6000 0.8000 1.0000 1.2000 1.4000 1.6000 1.8000 2.0000 2.0000 2.0000 2.0000 2.0000

% Or via a for loop
for k = 1 : numel(vec)
    result(k) = 2 * M(k);
end

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Answer 3

[Image Analyst]

"assign i=0.9 on the first element, then assign 0.8 on the first element till 0.1"

Try this

for k = 1 : 9
    result(k) = (10 - k) * 0.1;
end
result

result = 1×9

0.9000 0.8000 0.7000 0.6000 0.5000 0.4000 0.3000 0.2000 0.1000

[M]

I want to move into M=[i 1 1 1 1 1], it is an input for another function

[Image Analyst]

OK, so did you do it? Again, don't use "i" as the name of your variable. That is something everyone here advises against.

for k = 1 : 9
    result(k) = (10 - k) * 0.1;
end
M = [result, 1 1 1 1 1]