Yiutu is equal to 1.4. The term was coined by Garrett Wilkinson.
Approximations[]
| Notation | Lower bound | Upper bound | |
|---|---|---|---|
| Scientific notation | \(1.4\times10^{0}\) | ||
| Arrow notation | \(1.4\times10\uparrow0\) | ||
| Steinhaus-Moser Notation | 1[3] | 2[3] | |
| BEAF | {10,0.146128} | ||
| Hyper-E notation | E0.146128 | ||
| Hyperfactorial array notation | 1! | 2! | |
| Fast-growing hierarchy | \(f_0(0.4)\) | ||
| Hardy hierarchy | \(H_{1}(0.4)\) | ||
| Slow-growing hierarchy | \(g_{\omega+1}(0.4)\) | ||