- "E" redirects here. For the Irrational character, see Euler's Constant.
- "I" redirects here. For the number character, see Imaginary Number.
Variables, also referred to as Letters, are a species that reside in the Equation Playground, in the genus Algebraliens. X is the most notable variable, mainly due to their role as the co-host of Battle for BFDI and Battle for BFB.
Quick Answers
Who is the most notable variable in the Equation Playground?
The Equation Playground is inhabited by Algebralians such as Integers, Variables, Polygons, Irrationals, Operators, Fractions, and Polyhedrons. The variable 'X' is particularly significant, as suggested by the episode 'X Finds Out His Value'.
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What is the role of X in Battle for BFDI and Battle for BFB?
In the Battle for BFDI and Battle for BFB, X was a key figure. During the BFB–TPOT War on May 25, 2020, X led the BFB and Grand Duchy Of BFDI alliance in the Battle of BFB. Despite their loss, X's leadership significantly influenced the course of the war.
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What species do the variables belong to in the Equation Playground?
In the Equation Playground, the Variables are a species from the Algebraliens genus. X, a significant Variable, is known for co-hosting Battle for BFDI and Battle for BFB. The Equation Playground is also home to species such as Integers, Polygons, Irrationals, Operators, Fractions, and Polyhedrons.
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Who are the non-canon variables in the Equation Playground?
Non-canon variables in the Equation Playground belong to the Algebraliens species. They are represented by Latin alphabet letters. X was the first variable, introduced in 'X Finds Out His Value'. N Variable, Y Variable, and Z Variable debuted in 'The Number Playground Chronicle!'. Their canon status is currently disputed.
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Known members[]
- a
- b
- D
- d
- e
- f
- G
- h
- i
- j (BlueJay/jaysillyboy)
- k
- N
- T
- W
- X
- Y (whY)
- y (non-canon)
- Z
- z
- Ean (27th Letter)
- Vrrrpt (28th Letter)
Gallery[]
Normal[]
Cave drawings[]
Season 1[]
Season 2[]
Possibly Variable[]
Trivia[]
- It was widely believed that Variables and Integers were the same species, until "The Number Playground Chronicle!" had clarified that the two were in fact separate species.
- Despite having similar characteristics, the GO Guys do not appear to be variables.
- All variables apparently have numerical values.
- In "The Official Four and X Plush" X says that all variables' value changes daily. Since this short is non-canon, it's unknown if this is true or if values stay the same after they're solved.
- This was also mentioned in "The LOST NEWSPAPERS of Four and X".
- Two variables can actually represent the same letter, being uppercase and lowercase versions. One example of this is D variable and d variable, being two completely distinct characters.
- Variables are likely less common than Integers, this is probably due to the fact that there are infinite numbers, but only 26 letters