Can someone explain magnitude for me?

In physics, a vector is a thing with a direction and a length, also called a magnitude.

Examples of these are

• velocity: direction is direction, magnitude is speed.

• displacement: to get from A to B you travel m units in direction d. m is the magnitude.

Vectors can be added -- a + b means first moving along a then along b.

Thus if we want to get from place A to place B by moving x, we have the equation A + x = B. Algebra tells us that this means x = (B - A). This is a vector describing how to get from A to B. We can request the length of this vector by asking for x.magnitude.

Then to test if a point is close to another point, you just check if the distance between them is less than some certain amount.

In vector theory, magnitude is the length of the vector. It is gotten by the Pythagorean Theorem like so:

magnitude = sqrt(X ^ 2 + Y ^ 2 + Z ^ 2)

That will return the length of the vector.

In roblox, this is how we use it:

local Part1 = workspace.Part1
local Part2 = workspace.Part2

print((Part1.Position - Part2.Position).Magnitude)

This will print the distance(in studs) between the two parts.

You could have also done it with the Pythagorean Theorem like this:

local Part1 = workspace.Part1
local Part2 = workspace.Part2

local Delta = Part1.Position - Part2.Position

print(math.sqrt(Delta.X ^ 2 + Delta.Y ^ 2 + Delta.Z ^ 2))

Delta means the difference between two numbers basically. And if you look at "math.sqrt(Delta.X ^ 2 + Delta.Y ^ 2 + Delta.Z ^ 2)" You will see that that is the Pythagorean Theorem which is how magnitude is calculated. I hope this helps :)

Maginitude is the space between 2 objects. By default the magnitude would be the space between An object and the origin of the world unless defined otherwise. To change this you would do something like this local magnitude = (part1.Position - part2.Position).magnitude