Statsulator is calculator that operates on sets of numbers at a time.

Enter a series of comma separated numbers, then choose from the following operations:

Sum: Sum all the numbers up.
Product: Multiply all the numbers together.
Factorial: Calculate the factorial of each number in the series.
Square Root: Calculate the square root of each number in the series.
Square: Square each number in the series.
Mean: Find the average of all the numbers.
Variance: Find the variance of the series.
Standard Deviation: Find the standard deviation (or the square root of the variance) of the series.

There are also three basic combinatorial functions to save you time:

Permutations: Find the number of permutations of n distinct object taken r at a time.
Partitions: Find the number of ways to partition a set of n objects into r cells with n1 elements in the first cell, n2 elements in the next cell, and so on.
Combinations: Find the number of combinations of n distinct objects taken r at a time.

Note: The number of permutations of n distinct objects is simply n! (n factorial).

To backspace swipe your finger across the "C" button. To clear the series, double tab the "C" button.