Having issues ploting a graph in octave - octave

So, i feel that my problem is, actually, very simple, but I´m too unexperienced in Octave to spot the problem.
enter image description here
all i get is this weird graph that doesn´t see to make any sense.
enter image description here
what am I doing wrong?

Related

Is it possible to change the size of a fixed text to image code?

First of all, excuse my poor wording of the question. Still a novice.
I'm dealing with a packing slip template that's html based and I was asked if I can make the barcode bigger. I don't have access to the barcode itself, all I can do is call it by typing gnShortBarcode (calling barcode gives me a longer version of the barcode and they don't use that one.) I tried putting it in a div and making the entire div bigger and that didn't work. Is it even possible? Just to reiterate, the code looks something like <p> _gnShortBarcode_ </p> which is why it's so weird to me. it not calling a class or anything where I can re-adjust the barcode dimensions myself.
I appreciate any sort of help given. Even as simple as helping me re-wording the question for future purposes. Any tips are welcome.

What should I do if my image doesn't get rendered?

I'm working on a school project and the picture I chose doesn't want to load. I'm pretty new to programming so I don't understand why it is happening. It's never happened before.
<img class="dckep1" src="../K%25C3%25A9pek/dckep1.jpg">
Any ideas how to fix it?
It means that in the path ../K%25C3%25A9pek/dckep1.jpg there isn't any image. You might want to fix that.

I tried using an image in HTML, why won't it show

The Code I have tried.
I dont know what mistake I made here, I am retaking a course and going through the image part(I am a newb), however my images never load it just gives me the picture wont load broken face. Help please!

How is this website performing this particular function?

I am looking at this website here, https://www.symbolab.com/
, and in particular the matrix entry function on it. Pressing the icon with the brackets to the left of the H2O icon will take you to it.
Now, you are then prompted to enter your own user-defined size of matrix. Below then in a text area then appears the blank matrix, with the predefined text fields arranged in an array.
I am wanting to replicate something similar myself, and was wondering how this site was performing this function. I am new to HTML and was wondering what components were being used here? Is the larger area that the matrix is contained in a canvas? Are the fields of the matrix Input Type Text fields? If so, how is the resizing dynamically achieved as the user enters text?
Anyone know? :)
Jeremy
The first step when you want to know what's happening behind a website is to open the console and look at the code and scripts. I think that the textarea used into your example is a basic textarea.
If your looking for a textarea that auto-resize, you can achieve this in JS. Maybe that post can help you.
If your looking for a way to write math formula into an HTML page, there is several solutions for you on the web. That stackoverflow post propose to use MathJax.
Hope it helps you a bit.

Tesseracts handles similar Pictures completely different

I was just playing around a little with Tesseract as I noticed some strange behavior of the program, which I can’t explain myself. Firstly I gave tesseract this preprocessed Picture1 but it didn’t understand any letter.
Then I put this one in and guess what it gave me?
Neuinitialisierung des automatischen
Karten-Updates erforderlich. Aktuellste
The exact letters and words, every single letter was correct!
So can anybody tell me why it didn't got the text in the first picture.
(btw. I preprocessed the two pictures in the absolut same way)
Thanks in advance!