curl --request POST \ --url https://api.iotools.cloud/v1/tool/permutations-with-repetition-calculator \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data ' { "n": "10", "r": "4" } '

{ "tool": "permutations-with-repetition-calculator", "tool_version": "1.0.2", "outputs": { "results": [ { "metric": "Arrangements with repetition (n^r)", "value": "10,000" }, { "metric": "Digits in result", "value": "5" }, { "metric": "Without repetition, P(n, r)", "value": "5,040" }, { "metric": "Combinations, C(n, r)", "value": "210" }, { "metric": "Combinations with repetition", "value": "715" } ] }, "credits_used": 5, "credits_remaining": null }