Storing the values of a for loop

That is the line to increment ze from 0.1 to 1.2 in increments of 0.1. How do I store the values of ze?

for ze=0.1:0.1:1.2 end;

[Stephen23]

ze = 0.1:0.1:1.2;

[Aishwarya Bangalore Kumar]

can you elaborate a little?

[Stephen23]

@Aishwarya Bangalore Kumar: it creates a vector ze with values from 0.1 to 1.2 in steps of 0.1.

Answer 1

[Star Strider]

Assign ‘ze’ before the loop, then index with reference to it:

ze = 0.1:0.1:1.2;
for k = 1:numel(ze)
    v(k) = % DO SOMETHING
end

[Aishwarya Bangalore Kumar]

I still did not get the output

[Star Strider]

What are you doing in the loop?

This approach avoids defining ‘ze’ in the loop. Defining ‘ze’ before the loop allows you to use it anywhere in your code.

If you want to use elements of ‘ze’ in your calculations in the loop, just refer to them with subscripts:

ze = 0.1:0.1:1.2;
for k = 1:numel(ze)
    v(k) = ze(k)^2;
end

[Aishwarya Bangalore Kumar]

I used to loop to increment the value of 'ze' which is used in an equation.

[Star Strider]

The loop here increments ‘ze’ with every iteration of the ‘k’ loop.

[Aishwarya Bangalore Kumar]

I want my variable 'ze' to increase from 0.1 to 1.2 by 0.1times, this is the problem and I thought I will use a loop to do it. That is the only function it has to perform.

[Star Strider]

You do not need a loop to create or increment ‘ze’. This code does it automatically:

ze = 0.1:0.1:1.2;

Also, the colon (link) operator creates ‘ze’ in a way that minimises the errors that occur in floating-point calculations. A loop that begins from 0.1 and increments by 0.1 to 1.2 would propagate, rather than minimise, those errors.

[Aishwarya Bangalore Kumar]

Thank you I understood now , it was a big help!

[Star Strider]

As always, my pleasure!