firepit | Firebase CLI for Windows | Authentication library

I am trying to setup firebase Command line interface(CLI) in windows 10, I used the below command to install firebase tools

I am new to reinforcement learning. I had recently learned about approximate q learning, or feature-based q learning, in which you describe states by features to save space. I have tried to implement this in a simple grid game. Here, the agent is supposed to learn to not go into a firepit(signaled by an f) and to instead eat up as much dots as possible. Here is the grid used:

...A
.f.f
.f.f
...f

Here A signals the agent's starting location. Now, when implementing, I set up two features. One was 1/((distance to closest dot)^2), and the other was (distance to firepit) + 1. When the agent enters a firepit, the program returns with a reward of -100. If it goes to a non firepit position that was already visited(and thus there is no dot to be eaten), the reward is -50. If it goes to an unvisited dot, the reward is +500. In the above grid, no matter what the initial weights are, the program never learns the correct weight values. Specifically, in the output, the first training session gains a score(how many dots it ate) of 3, but for all other training sessions, the score is just 1 and the weights converge to an incorrect value of -125 for weight 1(distance to firepit) and 25 for weight 2(distance to unvisited dot). Is there something specifically wrong with my code or is my understanding of approximate q learning incorrect?

I have tried to play around with the rewards that the environment is giving and also with the initial weights. None of these have fixed the problem. Here is the link to the entire program: https://repl.it/repls/WrongCheeryInterface

Here is what is going on in the main loop:

Ok, so I almost have this script finished, but I'm having an issue where I am getting an Undefined Index error when I try to submit the page on the 'site' index, used in both the $_GET to get it from the URL, and the submit.

I'm pretty new to coding with php and SQL, so I'm probably going to have a lot of questions. But as the title states, I'm getting this error...

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1

I'm not sure what this is referring to. I've gone over the code as much as I can, but I can't find a syntax error. Maybe it's something I just don't know yet.

So the title might not be perfect, but it's essentially what I want to do.

I'm creating an app using Unity 2017.3.0f3 and Google's ARCore where you can select a model to place in the world and change the texture on the material as desired. The problem I'm having is that I can place a model with 1 texture on it, but when I change the texture on the Ghost model (in this case, the Ghost model floats around in the world on the ARCore Plane where a Raycast from the center of the screen collides with the Plane) it changes the texture on the already-placed model as well. See the screenshots below, taken seconds apart from screenshots on my phone:

1. I have placed a model (left/back) with the 'Lit' firepit texture, and the Ghost model is still 'Lit' (right/front):

1. I have clicked the 'Unlit' firepit texture in the list, and now both models have changed texture:

This is the code I wrote to change the Ghost to the selected model (it works, I've tested it with multiple models, but the demo currently only has 1), which is called when clicking on the model thumbnail in the bottom pane:

Recently, I have been working on a simple website for a small landscaping business as my first test starting as a web developer. Aware of my small amount of skills, the client does not care much for the site to be insanely detailed; he just wants his information to be accessible on the Internet since he isn't confident in his ability to manage social media himself.

I've run into a somewhat common problem from what I've seen, but every answer I try doesn't seem to work out. The problem is, while creating a sample/template with googled images and sample text to form a layout, my background image is covering the background color assigned to the footer, which I don't want. Can someone help me with this?

P.S. I'm aware there are a LOT of things that aren't finished in this code and I believe that I've seen most of them (ex. link targets and urls), but feel free to point them out so I can make note of all of them