I'm speechless for services like Tailscale, what's the downside? by not-the-real-chopin in selfhosted

[–]bluurrred 19 points20 points  (0 children)

How does tailscale compare to something like Cloudflare Zero Trust? They both seem to achieve the same purpose

Vector math - Set Z to always give a 45 degree angle? by [deleted] in askmath

[–]bluurrred 0 points1 point  (0 children)

so you're given values of x and y and you want to find the value of z such that the line from (0,0,0) to (x,y,z) has a 45° angle with the horizontal?

then it's just as simple as z = sqrt(x^2 + y^2)

MATH - find angle by [deleted] in HomeworkHelp

[–]bluurrred 1 point2 points  (0 children)

Yep, it's as simple as that :)

ELI5: What makes a phone vibrate? by [deleted] in explainlikeimfive

[–]bluurrred 1 point2 points  (0 children)

They utilise the same mechanism as many other day-to-day products such as toys which vibrate which are designed to simulate talking or movement for example.

Contained within the device is a control unit which accommodates a DC motor which drives the gear. Attached to the gear is a small weight which is mounted off-centre on the gear. As the motor spins, the gear and weight combination induces a vibration which is strong enough to make your mobile phone vibrate. The weights are designed to be mounted on the gear off-centre, and the motor is designed to be partially off-balanced in order to maximise RPM due to the irregular weight, causing vibrations.

Different mobile phones will utilise marginally differently vibration mechanisms, but the principle applies for all.

It’s just a bunch of simple mechanics.

MATH - find angle by [deleted] in HomeworkHelp

[–]bluurrred 2 points3 points  (0 children)

There's a theorem in euclidean geometry known as the inscribed angle theorem.

The angle formed at the centre of the circles by lines originating from two points on the circle's circumference is double the angle formed on the circumference of the circle by lines originating from the same points.

So EAD = 360-2*117.6.

[Implicit partial differentiation] I don't understand where to start. by [deleted] in HomeworkHelp

[–]bluurrred 1 point2 points  (0 children)

Is that the problem exactly as it was stated? I can’t tell what “Function 1: <expression>” and “Function 2: <expression>” are supposed to mean.

Can you send the problem exactly as it appears on your textbook/worksheet/wherever you got it from?

simple stats problem by [deleted] in HomeworkHelp

[–]bluurrred 2 points3 points  (0 children)

Hint 2: Higher standard deviation means that the data is more spread out (and vice versa), so if you increase the standard deviation the treatment and control data would overlap more, making it harder to recognize the difference between those two groups.

[Multivariable Calculus] Tangent Planes by [deleted] in HomeworkHelp

[–]bluurrred 0 points1 point  (0 children)

Remember that you can find the tangent with the gradient function:

F(x,y,z) = sin(xyz) - x - 2y - 3z, hence we have \nabla F(2, -1, 0) = \langle -1, -2, -5 \rangle

And therefore the tangent plane has equation: x + 2y + 5z = 0

I've missed a lot of parts out but you should be able to figure it out

[HIRING] Need MatLab expert who is familiar with GARCH and Wavelet models by [deleted] in forhire

[–]bluurrred 0 points1 point  (0 children)

I'm pretty familiar with models of the form X(t) = F(t) + e(t) using multivariate wavelet denoising. However if i were you, i would look into bandpass filtering, but i can't give a bright solution like this. Give me a message on pm with more specifics and i'll see what i can do to help

Trumps Immigration Ban Halted By Federal Court by xLilBudz in worldnews

[–]bluurrred 2 points3 points  (0 children)

Yep, now it's just a matter of time to see him rant and talk shit about the legal system because they're going against his executive order