21.15109/ARP/BIPBSA Sajti, Szilárd Mihály0000-0002-8748-8242(Wigner Research Centre for Physics) ARP 2024 hdl:21.15109/ARP/BIPBSA/HJZTARhdl:21.15109/ARP/BIPBSA/RQT9C3hdl:21.15109/ARP/BIPBSA/2NOGCFhdl:21.15109/ARP/BIPBSA/0RDXWPhdl:21.15109/ARP/BIPBSA/ELVSSVhdl:21.15109/ARP/BIPBSA/3XGAQJhdl:21.15109/ARP/BIPBSA/6ZWALEhdl:21.15109/ARP/BIPBSA/RSG56Ohdl:21.15109/ARP/BIPBSA/FQAYLUhdl:21.15109/ARP/BIPBSA/AAUJ7Lhdl:21.15109/ARP/BIPBSA/SHJ16Fhdl:21.15109/ARP/BIPBSA/G6L3HWhdl:21.15109/ARP/BIPBSA/XONSORhdl:21.15109/ARP/BIPBSA/CX4TMNhdl:21.15109/ARP/BIPBSA/9PFKI2hdl:21.15109/ARP/BIPBSA/WJVX7Xhdl:21.15109/ARP/BIPBSA/WUKDENhdl:21.15109/ARP/BIPBSA/GEB9HZhdl:21.15109/ARP/BIPBSA/J3BROMhdl:21.15109/ARP/BIPBSA/LR67HJhdl:21.15109/ARP/BIPBSA/R7VJ3Xhdl:21.15109/ARP/BIPBSA/PBGHAZhdl:21.15109/ARP/BIPBSA/BBUC13hdl:21.15109/ARP/BIPBSA/SDD7SBhdl:21.15109/ARP/BIPBSA/0DMKZMhdl:21.15109/ARP/BIPBSA/ZCANKGhdl:21.15109/ARP/BIPBSA/C7PS6Yhdl:21.15109/ARP/BIPBSA/22SIL2hdl:21.15109/ARP/BIPBSA/05KYMH The α-stable distributions appear in a broad field. We needed them in X-ray and neutron off-specular scattering, where their characteristic functions are frequently used as correlation functions. In practice, we need the Fourier-transforms of the 2-dimensional (and usually cylindrically symmetric) correlation functions, i.e. the corresponding probability density functions. At first, we used implementations, which we have found sorrily to be numerically unstable. Therefore, we have written a new C++ code using the GNU MPFR (C library for multiple-precision floating-point computations) and boost multiprecision libraries. We present the ‘test’ results generated by this new code here. Additionally, we very shortly summarize the theoretical bases. For further details, we refer the reader to the given references, and the source code and its documentation also are provided. Sajti, Szilárd Mihály(Wigner Research Centre for Physics)