interator

Module for integer sequence generation and related conditional tests.

Installation

Use the package manager pip to install interator.

pip install interator

Contents

Fibonacci Sequence

Generalizations

By default, fibonacci_stream, negafibonacci_stream, nth_fibonacci, and is_fibonacci work with the Fibonacci numbers, and lucas_stream and is_lucas work with the Pell numbers. However, by changing start, any generalization of these sequences can be generated. Here are some common examples:

import interator

stop = 10
numbers = {'Lucas' : (2, 1),
           'Tribonacci' : (0, 0, 1),
           'Tetranacci' : (0, 0, 0, 1)}


for name, start in numbers.items():
    print('%s numbers:' % name)
    for i, n in enumerate(interator.fibonacci_stream(start=start)):
        print(n, end = ' ')
        if i == stop:
            print('\n')
            break

Please note the Lucas numbers should not be confused with the Lucas sequence. The Lucas numbers are a specific example of the Lucas sequence.

Prime Numbers

Polygonal Numbers

Licensing

This project is licensed under the MIT License.