How is a Radian written?

Help and Feedback Scripting Support
#1

I’m reading this article here: CFrames | Roblox Creator Documentation

https://gyazo.com/b61fecaaa87050be22688c5559cd13a5

The post says " As noted, parameters to CFrame.Angles() must be specified in radians , not degrees. If you prefer degrees, simply use the math.rad() converter as shown in this example."

How do I write a radian if I’m not converting degree’s into Radian? The article doesn’t seem to say?

#2

You could just use math.deg instead.

print(math.deg(math.pi)) → 180
print(math.rad(180)) → 3.14159…

Hope this helps!

Edit: oh wait, this is for CFrame, let me check something real quick.

#3

What I mean is, they say "CFrame.Angles() must be written in radians, not degrees and they tell you the function to convert a degree → radian. What I’m wondering, is how is a radian calculated or written? Because it didn’t look like they explained how to write a Radian?

Not that it matters, I mean converting degree into radian is fine, this is just for curiosity sake.

Edit: Like what I’m wondering is, how is a Radian written? Is it a float, integer, etc? And how to calculate it. What exactly is math.rad doing to change a degree into radian?

#4

Could’ve literally just googled it
image
Radian is just a regular number

1 Like
#5

I think its something like:

rad from deg:
degree * math.pi / 180

deg from rad:
radians * 180 / math.pi

#6

The degree is calculated by taking your radian and times it by 180/pi
so R*180/pi to get degree

#7

A radian is a form of angle measurement. Other mathematically acceptable forms of angle measurements are:

  • Degrees
  • Seconds/Minutes/Hours

You can convert degrees into radians easily with:

D * math.pi / 180

assuming D is in degrees.

In math equations, radians and polar coordinates are written with the theta symbol (θ), degrees are written in the degree symbol (°), minutes are written with a single tick (’), and seconds are written with a double tick (’’).

Seconds, minutes, and degrees can be combined into one accurate measurement.
40°20'50" is very close to 40.34722 degrees.

However, radians are used alone. This is because they are special to trigonometry, geometry, calculus, and more.

CFrames are matrixes, which is calculus. It makes most sense to use radians since it is most accurate and relevant.

Hopefully I answered your question (and gave a ton of useless information haha)

2 Likes