## Is there a way to get a list of all the dependants of a function in Mathematica?

Suppose we have a function of the general form $$f=func(x_1,x_2,x_3,…,x_n)$$ I am looking for a way to get this function as input and output the list of all dependants, $$\{x_1,x_2,x_3,…,x_n\}$$ For example $$sin(x+y)exp(r)+z+xz+y -> \{x,y,r,z\}$$ How to do that in general for any number of arguments?

Any help much appreciated.

## Is there any WordPress plugin that can achieve this kind of design?

I know wix can do this but the cost is steep so I use WordPress hosting but just as the title says, Is there any WordPress plugin that can achieve this kind of design for a t-shirt store page on my blog?

I want this to be on a separate page by itself with just t-shirt designs and call to action. Any help with this is appreciated. and is posting an image like this okay to help out.

## Is there an algorithm to check if two spheres are in collision and whether they’re colliding on the x or the x axis?

I was wondering if there was a way to find out whether a spheres is intersecting another sphere on either its x or its z axis. For instance, Planet A is moving along the Z Axis towards Planet B a stationary object and when collision occurs I would like to get a reponse that tells me that they collided on the zAxis. I can find out if a collsion has occured using the code below however I’m not sure on how to impliment the directional aspect of this. Any help would be appreciated.

``    enum ECol { x_Axis, z_Axis, none };      // Collision detection between two spheres      distanceX = sphere2XPosition - sphere1XPosition;     distanceZ = sphere2ZPosition - sphere1ZPosition;     distance = sqrt(distanceX * distanceX + distanceZ * distanceZ );      if (distance < (sphere1Radius + sphere2Radius))     { // Collision occurred } ``

## Is there a 3.5e book detailing Baldur’s Gate circa 1380?

I am playing in a game set in Baldur’s Gate in year 1380 and I’m trying to understand the geography of the city and its districts at that time (1372 is also good).

Which books have a map or a description of the districts of the town in that era?

I can only find D&D 2e material (Volo’s Guide to the Sword Coast) and D&D 5e material (Murder in Baldur’s Gate and Baldur’s Gate: Descent into Avernus), both named in this question.

I am mostly interested in finding out when the lower city stopped being called Heapside as a whole giving birth to Bloomridge and other districts and when was Twin Song founded, but should the 3.5e material not talk about these things I will ask new questions (or ask Ed Greenwood).

## in 5th ed D&D are there rules on how to research and create new spells?

I was thinking about making a few new spells for 5th ed D&D. Are there any official guidelines on how to go about doing so? If so where is the information found? Please note: I am interested only in 5th ed, no other edition’s materials.

## can an aarakocra grapple with there feet?

I’ve gotten into debates with this, some say (including myself) that it should be a possible feat to pull, though most if not all of the DM’s I play with disagree. Stating that flying 50 ft is game breaking as it is, and to grapple with feet is to overpowered as no other race does such a thing and its not given a mechanical option such as talons. Grappling also states that you must use a free hand, but creatures such as a harpy dont have such a restriction. With aarakocra being part bird, I feel its a safe assumption to say it’s possible while still having the restrictions as a normal grapple, just both hands are left free. to me (and a few others) with them being part bird, it should come as a second nature of sorts, especially compared to the more early editions when there hands and wings took the same space. I haven’t found a ruling stating that they can’t, but also none that say they can. thoughts?

## Are there penetration labs for network penetration testing? [closed]

I am in search of penetration labs which are designed for network penetration testing or a lab which contains a portion of network pen-testing. Could anyone suggest about me that?

## Is there an official source for the properties of stone?

The issue comes up mainly in relation to the spell wall of stone, which states that:

A nonmagical wall of solid stone springs into existence at a point you choose within range. […] The wall is an object made of stone that can be damaged and thus breached. (PHB 287)

The wall is a nonmagical object from the moment it is created. This, to me, reinforces that it is ordinary stone, with all the properties of it. However, the spell unhelpfully neglects to inform us of many of its properties, in particular any damage threshold, resistances and immunities.

Objects are immune to poison and psychic damage. You might decide that some damage types are more effective against a particular object or substance than others. […] Big objects such as castle walls often have extra resilience represented by a damage threshold. (DMG 247)

While we can make up our own ruling, I am interested whether we got any official information that can be applied here.

Is there any officially published material that describes the properties of stone, especially a wall and its resistances, immunities and damage threshold? If yes, what does it say? Bonus points if that wall was created by the spell wall of stone.

## Is there a way to get Decisive Strike with a mind blade?

I’m working on a Darth Vader build for a competition. To represent the light saber, I would really like to use mind blade (from the 3.0 Soulknife prestige class, which is actually pretty cool, especially compared to the 3.5 base class). However, the Monk ACF Decisive Strike (which replaces Flurry of Blows) would make a fantastic addition to the build.

Problem is, Unorthodox Flurry and Whirling Steel Strike both have “flurry of blows class feature” as a prerequisite, so I can’t use either to make the mind blade a special monk weapon. My second thought was Shou Disciple, but it only lets you flurry with other weapons; it doesn’t make them special monk weapons, and thus it wouldn’t let you decisive strike with mind blade either. The Eberron Monk substitution levels give you Whirling Steel Strike as a bonus feat, which would normally obviate the need for the prerequisites… but explicitly still requires all prerequisites. There are also numerous classes that give you a “flurry” of some flavor, but none I’ve found so far are specifically a “flurry of blows” that would work as a monk-independent way of qualifying for one of the feats.

So how about it? Is there a way to make a mind blade, short sword, or longsword* count as a monk special weapon that doesn’t also require you to have Flurry of Blows? Or a way to count as having the “Flurry of Blows class feature” to qualify for a feat? Or for that matter, a way to get Decisive Strike without trading away Flurry of Blows?

*The Soulknife prestige class (Psionics Handbook pg 113) says the mind blade is “identical to” a short sword until level 8, at which point it’s “identical to” a longsword. As far as I’m concerned, that means any method that works for one of those also works for the mind blade. It also means longsword is the least preferable of the three.

## How come there are TLS 1.3 signature algorithms when the client version stated is TLS 1.2?

I’m analyzing traffic in order to understand TLS Client Hello structure so I can parse it.

I read that TLS 1.3 adds more signature algorithms. However, I saw a Client Hello message that states that the client version is 1.2, but has the new TLS 1.3 signature algorithms (e.g. Signature Algorithm: ed25519 (0x0807), see attached packet ahead).

Does that make sense?

Can I just assume that regardless of the version, I need to handle those new signature algorithms as well?

This is the packet in WireShark format.