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Linux Mastering Development Ubuntu

Flakey TouchPad Not Fixed by Kernel Upgrade, 20.04

I’m a newbie to this site, but not new to Linux or Ubuntu. I have an ALPS PS/2 DualPoint TouchPad that’s been acting flaky for several weeks. I also have the ALPS PS/2 DualPoint Stick, which works fine. Since I have two almost identical computers and and both started the problem at about the same […]

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Linux Mastering Development Ubuntu

Changed the graphics driver, and now ubuntu freezes as soon as it opens

Some program couldn’t identify my GPU, so I thought it might be a driver issue. I opened the Additional Drivers window and changed from open-source option (don’t recall its name) to nVidia. I clicked Apply Changes. it downloaded something and then all set. I restarted. Now every time I open Ubuntu it freezes after an […]

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Artificial Intelligence (AI) Mastering Development

How do Deep Q networks actually Converge

One can say that a Deep Q network predicts it’s own value, if that’s the case,how sure are we that at the end of the day , we get the accurate target Q values? Because Q(s,a) and Q’(s,a) are predicted values, in supervised learning, the target value is a true unbiased value, but this isn’t […]

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Linux Mastering Development Ubuntu

my touchscreen is not working on my acer spin 1

i am on an Acer spin 1 111-31. this computer has a touchscreen and can convert into a tablet. it comes with windows. it was working fine until it was really laggy and i couldn’t use it anymore. i think that it’s at that time that the touchscreen stopped working as well, but i’m not […]

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Mastering Development

Adding numbers to duplicated IDs in a JS array

I have an array with users’ data, I need to check if an username is already on the array and, if that’s the case, I need to add a number after it (user1). I was able to implement it, but when there is another user with the same username, there is another user1. I need […]

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Database Development

Is there a limit to the number of objects that can dropped and recreated (frequently) in SQL Server?

The datatype for field [object_id] in table sys.objects is "int" So for all the objects in a database this is unique and has a limit of 2,147,483,647 (2 billion’ish) What happens when there is some process (connecting to this database) that drops and (re)creates a large number of (user defined) tables every hour every day. […]

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Ask Biology

Why hasnt been developed yet a COVID-19 vaccine? [duplicate]

I’m a complete noob when it comes to biology, but as far as I remember from my biology class, a vaccine is just a the viruses itself but in small amounts so that the immune system creates memory cells. And I was wondering, if that’s the case, COVID-19’s vaccine should be simple to make, but […]

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Development

Extending Array.prototype crashes

I was trying to solve the following problem which I got on a blog but the program crashes. What could be the reason? and is there any means of solving it? I have read warnings not to extend builtin objects, if that’s the case, what could be the reason associated with this specific example. const […]

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Development

Extending Array.prototype crashes

I was trying to solve the following problem which I got on a blog but the program crashes. What could be the reason? and is there any means of solving it? I have read warnings not to extend builtin objects, if that’s the case, what could be the reason associated with this specific example. const […]

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Ask Friends

[ Friends ] Open Question : How many people do you know who continuously tell you they are a ‘Stable Genius’?

If that’s the case, does it not ocurre to you that those people are grotesquely self centered maniacs. Trumps friends think it is normal, what does that say about them?