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Formula
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| Number of types of items (n) | 5 |
|---|---|
| Number of positions to fill (r) | 3 |
Enter the total items n and items to arrange r to compute permutations (nPr) and get the number of ordered arrangements instantly, ideal for combinatorics.
Enter n (item types) and r (items chosen) to compute combinations with replacement via C(n+r−1, r). Instant results for counting and probability.
Calculate percentages easily with this Percentage Calculator. Input numbers and select from options like percentage of a number, number as a percentage of another, or percentage change between two numbers for quick results.
Calculate percent change from original and new values. See increase or decrease, the difference, and absolute percent change in seconds.
Enter two points (X1, Y1) and (X2, Y2) to compute rise, run, slope (m), and the line angle in degrees. Get instant results for math and physics.
Use this online stopwatch to measure time intervals precisely. Start, stop, and reset with ease.
Free online countdown timer. Set hours, minutes, and seconds to count down easily. Simple, fast, and useful for work, study, or daily tasks.
Simple online counter tool. Increase, decrease, or reset numbers instantly. Set custom step values and limits with ease.
Use our free online alarm clock to wake up, stay on schedule, or manage tasks. Set alarms quickly and customize sound and time right in your browser.