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1Introduction
The permutation and combination calculator is used to calculate the number of permutations and combinations when selecting k elements from n distinct elements. Permutations consider order, while combinations do not. This tool uses high-precision algorithms and supports relatively large n and k, with results accurate to integers. It is suitable for mathematics, statistics, and probability theory learning. Simply enter n and k to get both results. It is a helpful assistant for solving permutation and combination problems.
2How to Use
Enter Total n
Enter the total number of elements n.
Enter Selection k
Enter the number of selected elements k.
Click Calculate
Click the "Calculate" button to get the permutation and combination numbers.
3FAQ
What are the restrictions on n and k?
n and k must be non-negative integers, and k ≤ n, otherwise the result is meaningless.
Does it support large number calculations?
Yes, but very large numbers may cause results to exceed JavaScript's safe integer range, and results may not be precise. It is recommended that n not exceed 170.
