include 5 but

[0:0.1:(5-10*eps)]

not include 5
the number for change here is a mystery!

[0:0.1:(5-eps)]

must not include 5 floting point number, because eps is machine epsilon and 5 != (5-eps) is true
Very annoying.

Using two colons to create a vector with arbitrary real increments between the elements,
E = 0:.1:.5
results in
E =
0 0.1000 0.2000 0.3000 0.4000 0.5000
This primer in help documentation about : operator must comment on this.
version 7 Matlab

The term end is used for the last element. So you can write:

array = ones(10,1);
%assume array length is unknown
offset = 5;
second_array = array(offset:end);

It’s been available in MATLAB since version 5, I believe.
–Loren

second_array = array(offset:'last')

array = ones(10,1);
%assume array length is unknown
length_of_array = length(array);
offset = 5;
second_array = array(offset:length_of_array);

Is there a better solution? I would have thought it would look something like this – but it comes up with an error:

array = ones(10,1);
offset = 5;
second_array = array(offset:);

Any help?

Take a look at the function bsxfun.

–Loren

greetings..

I need to subtarct 2 matrices..

a =

     1     2     3
     4     5     6

and

mu =

     2
     5

how can i do in in 1 line..( i.e i do not want to use loops and subtract row by row..i.e subtarct each element of a row wise by element in mu)

i tried using ” a. – mu ” ,but it doesnt work ( not surprisingly!)

i answer i expect is

-1 0 1
-1 0 1

Could u pls reply?

Thanks and Regards,
Kishore.

You could use a while loop and and index that I bump by some increment.

maxind = 10;
nums = zeros(1,maxind);
ind = 0;
while ind < maxind
   ind = ind+1;
   nums(ind) = ind;
end

and obviously you can get more elaborate with starting, ending values and increment not being 1.

BUT, is there a reason to not use : ?

--Loren