Loop to plot

As an afterthought I overlooked that you can/should delete the last single sigma_i in the for loop as it has no effect. There is also no need for "j" which is never used.

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@JB_10220769 wrote:

Is there any specific reason why I am only getting two values for returning sigma

 

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Yes, its because you defined a FUNCTION epsilon(..), not a simple variable epsilon as i did. This function is never called and so sigma consists of the two values you manually assigned.

Note that nothing you change inside a program can change anything on worksheet level, even if the variable has the very same name (like sigma in your case). Only way to change a worksheet variable with a program is via the return value and the names of the (local) variables in the program dos not matter. They must not be the same as the variables in the worksheet.

If you really need a function because you intend to call it with different initial values sigma[1, you should define it as epsilon(delta) and not of delta[i.  But I guess you just want the variable epsilon as a vector.

I see that you obviously do not just want a vector epsilon but also the corresponding vector delta, right?

You can do it that way

or I would prefer this

And of course you may plot epsilon over sigma if you like

P6 worksheet attached