Number Series Calculator

Number Series Calculator can be useful for self-learning the numerical sequences used in IQ Tests and Number Series Tests. It is designed to assist in preparation for IQ Tests and Number Series Tests.
With Number Series Calculator you can find the next number and analytical expression of the number sequence and analyze many different types of number series (Fibonacci, Arithmetic progression, Geometric progression etc.) .

This application works in two modes : offline and online.
In online mode you can search our sequence database using a question mark, for example, 1,?,?,4 or ?,?,3,4.

Symbol ^ used to represent exponentiation. For example, 2^2 means 4 .

Number Series Calculator can
- find the next number in a number sequence
- search our sequence database (you can use ? symbol, for example ?, ?, 3, 4, 5)
- automatically detects the symbolic expression of the number sequence
- automatically detects the the type of the number sequence
- supports number sequences of up to 10 elements in length


Examples of use.

1 - What is next term in the number series 1, ?, ?, ?, ?, 8, 13, ?, ?, 55

Result:
Next number: 89
Expression: A[n] = A[n-1] + A[n-2], n = 1,2,3 ...
Method: Fibonacci

2 - Find the next number in the number sequence 1, 1, ?, ?, ?, 8

Results:
1. Next number: 13
Expression: A[n] = A[n-1] + A[n-2], n = 1,2,3 ...
Number Sequence: 1, 1, 2, 3, 5, 8
Method: Fibonacci

2. Next number: 7
Expression: A[n] = A[n-1] - A[n-2] + n, n = 1,2,3 ...
Number Sequence: 1, 1, 3, 6, 8, 8


3 - Find the next number in the number sequence 1, 2, 3, 4, 5, 6

Results:
1. Next number : 7
Expression: A[n] = n, n = 1,2,3 ...
Method: Common Differences

2. Next number: 7
Expression: A[n] = A[n-1] + 1, n = 1,2,3 ...
Method: Common Differences

4 - Find the next number in the sequence 1, 2, 4, 8, 16, 32

Result:
Next number : 64
Expression: A[n] = A[n-1] * 2, n = 1,2,3 ...
Method: Common Differences


Number Series Calculator does not guarantee finding the best solutions.
For best results, run the application 2 or 3 times.