C-Sharp/Algorithms/Sequences/FibonacciSequence.cs at master · TheAlgorithms/C-Sharp · GitHub

Name: C-Sharp/Algorithms/Sequences/FibonacciSequence.cs at master · TheAlgorithms/C-Sharp · GitHub
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usingSystem.Collections.Generic;
usingSystem.Numerics;

namespaceAlgorithms.Sequences;

/// <summary>
/// <para>
/// Fibonacci sequence.
/// </para>
/// <para>
/// Wikipedia: https://wikipedia.org/wiki/Fibonacci_number.
/// </para>
/// <para>
/// OEIS: https://oeis.org/A000045.
/// </para>
/// </summary>
publicclassFibonacciSequence:ISequence
{
/// <summary>
/// Gets Fibonacci sequence.
/// </summary>
publicIEnumerable<BigInteger>Sequence
{
get
{
yieldreturn0;
yieldreturn1;
BigIntegerprevious=0;
BigIntegercurrent=1;
while(true)
{
varnext=previous+current;
previous=current;
current=next;
yieldreturnnext;
}
}
}
}