Confluent hypergeometric function ₁ F₁ (a,b,x) is defined as

This function is calculated by using the Hypergeometric2F1 subroutine. The algorithm calculates the result using both the sum of the series and the asymptotic formula, compares the two values and returns a better one. If the error is greater than 1E-13, the algorithm sets the parameter PrecLoss to True.

Report a bug

C#

C# 1.0 source.
hyper1f1.csharp.zip - Confluent hypergeometric function 1F1

C++

C++ source.
hyper1f1.cpp.zip - Confluent hypergeometric function 1F1
ablas.zip - optimized basic linear algebra subroutines with SSE2 support (for C++ sources only)

Delphi

Delphi source.
Can be compiled under FPC (in Delphi compatibility mode).
hyper1f1.delphi.zip - Confluent hypergeometric function 1F1

Visual Basic 6

Visual Basic 6 source.
hyper1f1.vb6.zip - Confluent hypergeometric function 1F1

Zonnon ^beta

Zonnon source.
Zonnon is an experimental language developed at ETH Zurich.
See www.zonnon.ethz.ch for more information.
hyper1f1.zonnon.zip - Confluent hypergeometric function 1F1