solar | Pelican theme for solar powered version | Theme library

Attempting to model thermal losses from a building, I have implemented the following code to run the model using a state-space equation. It seems to take in variables as expected from .csv files and arrange them into correctly formed matrices. However, it is returning "Exception: Data arrays must have the same length, and match time discretization in dynamic problems". When trying to debug I printed all the matrices in the equations to see if they matched (see below). I feel like this should be easy to see but I don't know where I have gone wrong.

I was simulating the solar system (Sun, Earth and Moon). When I first started working on the project, I used the base units: meters for distance, seconds for time, and metres per second for velocity. Because I was dealing with the solar system, the numbers were pretty big, for example the distance between the Earth and Sun is 150·10⁹ m.

When I numerically integrated the system with scipy.solve_ivp, the results were completely wrong. Here is an example of Earth and Moon trajectories.

But then I got a suggestion from a friend that I should use standardised units: astronomical unit (AU) for distance and years for time. And the simulation started working flawlessly!

My question is: Why is this a generally valid advice for problems such as mine? (Mind that this is not about my specific problem which was already solved, but rather why the solution worked.)

I'm a beginner and i tried to create a pie chart using json data. but this code does not shows any error and it does not show the chart also.

component.ts file is here

I am a beginner and I try to create a dynamic pie chart using angular and Kendo UI. I want to get data from json file and it is located inside the assets folder. I tried to link the .ts file and json file. but the chart does not show.

This is my component.html file

Lately when using Jupyter Notebook in VS Code to write some assignments for my studies I ran into a quite annoying problem - whenever there is a mistake in my code cell that prevents it from running, the "traceback" (or however you call it) to the place where the error persists is colored with a high-contrast marker (the color depends on the theme used) and makes the content pretty much invisible unless you manually "select" it with the mouse coursor. Is there any way I could fix it without going too much in-depth into VSCode/Jupyter Notebook extension settings?

The highlighting looks like shown below.

Yellow syntax marker problem.

And another one here.

I tried all the themes preinstalled with VS Code such as Monokai, Solarized Light etc., and also a custom theme of my choice called Dracula.

Thanks in advance.

I've never used modbus before.

I have an eBox-Wifi Epever connected to an MPPT charge controller TRIRON for solar power.

I was able to make it connect to my wifi and now has an accessible IP : 192.168.39.149

I just want to extract some data from it, battery Voltage, etc...

On http://192.168.39.149:80, i have a web interface for administration. (Which is not what i want.)

After an nmap, I see that there is port 8088 open. (Can use modbus there maybe ? no web interface on this port.)

I installed and used modbus_cli like that modbus -b 115200 -p 1 192.168.39.149:8088 3101 but I can't make it return anything...

https://files.i4wifi.cz/inc/_doc/attach/StoItem/7068/MODBUS-Protocol-v25.pdf

http://www.solar-elektro.cz/data/dokumenty/1733_modbus_protocol.pdf

https://github.com/favalex/modbus-cli

EDIT : I changed for baud 9600 and port 502. (Which are the defaults for modbus ?)

I am trying to write some code, that displays data from a database in Laravel. But I have two table values linked to eachother with a foreign key, and when I try to show that on my page, it just shows the id and not the actual name. I saw in another stackoverflow question that you should define the table data values in ur Model, but that doesn't work or I did it wrong. Can someone be so kind to help me fix this please? :)

Model Planet.php:

I am building a simple Laravel routing to display an array when someone goes to http://127.0.0.1:8000/planets

But I need to make a filter to check the array on what request has been send on the URL. For example: http://127.0.0.1:8000/planets?planet=mars

I need to make sure that if a GET parameter is present, you filter the array based on whether the planet name is in it. This way we can filter the results of the page a little faster.

The code I currently have Web.php:

The base problem is that I have lots of datapoints with normalized names that are just dumped from the server into a file, but I need to organize these datapoints into a file with rows and columns automatically, according to the data they contain (indicated in their normalized names).

The original file with all the datapoints comes as follows (these are not the original datapoint tags but rather simplified ones):