Hexation, represented as , is the sixth hyperoperation in the hierarchy of operations that extend beyond exponentiation. It builds upon pentation, which itself extends tetration, creating an extremely fast-growing function that quickly surpasses even the largest numbers encountered in most mathematical contexts.
This calculator helps you evaluate hexation values for given base a and height b, providing step-by-step breakdowns and growth notes to better understand the scale of these numbers.
Hexation is defined recursively using pentation (the fifth hyperoperation). For positive integers a and b, the definition is:
Here, denotes pentation of height k. Essentially, hexation applies pentation repeatedly, nesting it to an extraordinary degree.
Pentation is the fifth hyperoperation, defined similarly but one level below hexation. It iterates tetration, which itself iterates exponentiation. This hierarchy can be summarized as:
Let's compute step-by-step:
Since pentation equals tetration , we get:
Here, is a pentation tower of height 4, which is already astronomically large and beyond direct computation.
This example illustrates how quickly values grow with hexation, making exact numeric results infeasible for even small inputs.
| Operation | Notation | Definition | Growth Rate | Example (a=2, b=3) |
|---|---|---|---|---|
| Addition | Repeated increment | Linear | 5 | |
| Multiplication | Repeated addition | Linear growth in b | 6 | |
| Exponentiation | Repeated multiplication | Exponential | 8 | |
| Tetration | Repeated exponentiation | Super-exponential | 2 ↑↑ 3 = 2^{2^2} = 16 | |
| Pentation | Repeated tetration | Super-tetrational | 2 ↑↑↑ 3 = 2 ↑↑ (2 ↑↑ 2) = 2 ↑↑ 4 = 2^{2^{2^2}} = 65536 | |
| Hexation | Repeated pentation | Super-pentational | 2 ↑↑↑↑ 3 = 2 ↑↑↑ (2 ↑↑↑ 2) (enormous) |
This calculator is designed to handle small inputs for base a and height b due to the explosive growth of hexation values. For larger inputs, exact numeric evaluation is impossible with standard computational resources, so the calculator provides symbolic representations using Knuth's up-arrow notation.
Assumptions include:
Users should be aware that hexation values grow faster than most known functions and quickly exceed the capacity of conventional calculators or software.
Hexation is the next hyperoperation after pentation. While pentation iterates tetration, hexation iterates pentation, resulting in even faster growth rates.
Due to the extremely rapid growth, exact computation for large inputs is not feasible. The calculator provides symbolic notation and growth notes instead.
When numeric values become astronomically large, the calculator switches to symbolic notation to represent the result meaningfully without overflow or loss of precision.
Hexation surpasses all standard functions like exponentials, factorials, and even tetration or pentation in growth rate, making it primarily of theoretical interest.
Hexation and higher hyperoperations are mostly studied in theoretical mathematics, such as proof theory and computability, rather than practical computations.
"Show iterative breakdown" displays intermediate calculation steps when possible, helping users understand the recursive nature of hexation. "Include growth notes" adds qualitative information about how quickly the values grow.