Factorial vs Combinations — Counting Principles
Compare factorial and combination calculations. See how factorials underpin combination formulas.
Factorial Calculator n!
完整计算器 →阶乘计算器
n! = 1×2×3×...×n
Combinations (nCr)
完整计算器 →Combinations Calculator
C(n,r) — order does not matter
主要差异
| 特点 | Factorial Calculator n! | Combinations (nCr) |
|---|---|---|
| 类别 | math | math |
| 整页 | Factorial Calculator n! | Combinations (nCr) |