v1.5.1

SpecialFunctions v1.5.1

Diff since v1.5.0

Merged pull requests:

• Replace DoesNotExist with NoTangent (#327) (@devmotion)

v1.5.0

SpecialFunctions v1.5.0

Diff since v1.4.2

Closed issues:

• besselj(-n,0.0) throws AmosException(1) (#60)
• factorial(::Float64) errors in 0.7 (#105)
• erfc(::BigFloat) crashes Julia (#127)
• ChainRulesCore dependency causes 4x load time regression (#310)

Merged pull requests:

• use new ChainRulesCore (#319) (@oxinabox)
• relax ChainRules test on polygamma (#320) (@oxinabox)
• Revert change of OpenSpecFun_jll compat bound (#323) (@devmotion)

v1.4.2

SpecialFunctions v1.4.2

Diff since v1.4.1

Closed issues:

• logic error in ncbeta, (so in ncF too) (#237)

Merged pull requests:

• Generalize three-argument version of beta_inc (#318) (@devmotion)

v1.4.1

SpecialFunctions v1.4.1

Diff since v1.4.0

Merged pull requests:

• Add ChainRules definitions for gamma(a, x), loggamma(a, x), and gamma_inc (#305) (@devmotion)
• Use ChainRulesCore.@not_implemented and extend tests (#308) (@devmotion)
• Some fixes and simplications to the beta function(s). (#316) (@andreasnoack)

v1.4.0

SpecialFunctions v1.4.0

Diff since v1.3.0

Closed issues:

• Incomplete Gamma Function (#115)
• Migrate to travis-ci.com (#243)
• gamma(a, x) returns incorrect values for a <= ~1/2 (#303)
• Julia 1.6 in Windows 10 installs old version (#306)
• Gamma function overflows on Windows, but not on WSL2/Ubuntu (#309)
• endless loop in gamma_inc? (#311)

Merged pull requests:

• Remove out-of-date notes in documentation (#302) (@giordano)
• Fix evaluation of continued fraction for En_gamma (#312) (@andreasnoack)
• Use LogExpFunctions (#313) (@devmotion)
• Fix gamma_inc for larga a and small x (and very large x) (#314) (@andreasnoack)
• Some fixes for gamma_inc_inv (#315) (@andreasnoack)

v1.3.0

SpecialFunctions v1.3.0

Diff since v1.2.1

Closed issues:

• Documentation missing for latest tags (#286)
• Derivatives of Bessel functions with respect to the order (#292)
• renaming factorial (#296)
• maclaurin series using recursion (#298)
• won't compile on OS X 10.15.7 (but is fine on linux) (#301)

Merged pull requests:

• WIP: add loggamma(a,z) (#283) (@stevengj)
• Add SSH key to TagBot (#287) (@giordano)
• temporary workaround for chainrules test problem (#289) (@stevengj)
• renenable ChainRules tests now that ChainRulesTestUtils is fixed (#290) (@oxinabox)
• update to new ChainRulesTestUtils (#294) (@oxinabox)
• add CompatHelper (#299) (@ranocha)
• use new ChainRulesTestUtils (#300) (@oxinabox)

v1.2.1

SpecialFunctions v1.2.1

Diff since v1.2.0

Closed issues:

• bug in expintx for complex arguments (#284)

Merged pull requests:

• bug fixes in expintx (#285) (@stevengj)

v1.2.0

SpecialFunctions v1.2.0

Diff since v1.1.0

Closed issues:

• expintx function — exponentially scaled expint (#249)
• cancellation error in expint for near-integer order and small |z| (#276)
• erfcinv does not support BigFloat (#277)

Merged pull requests:

• Add differentiation rules from ChainRules (#238) (@devmotion)
• Add exponentially scaled exponential integral (expintx) (#270) (@augustt198)
• upper incomplete gamma function Γ(a,z) (#271) (@stevengj)
• bigfloat erfinv and erfcinv (#278) (@stevengj)
• fix spurious domainerror for expint(3.2, 1.3) (#280) (@stevengj)
• expint: series around gamma poles (#281) (@augustt198)

v1.1.0

SpecialFunctions v1.1.0

Diff since v1.0.0

Closed issues:

• Add jinc function (#264)
• expint: spurious domainerror for negative order (#272)
• wrong answer for expint(2.2,3.2) (#274)

Merged pull requests:

• Adding jinc function (#266) (@roflmaostc)
• fix spurious expint domain errors (#273) (@stevengj)
• expint: add another condition for gamma CF use (#275) (@augustt198)

v1.0.0

SpecialFunctions v1.0.0

Diff since v0.10.3

Closed issues:

• exponential integral (Ei, E₁, Eₙ...) function (#19)
• function naming style guide (#217)
• MethodError: no method matching loggammadiv(::Int64, ::Int64) for beta with a >> b (#239)
• optimized expint(x::BigFloat) (#245)
• expint type instabilty for negative order (#246)
• Expint hangs for complex NaN values (#247)
• expint test failure on Julia nightly (#250)
• expint requires Julia 1.4 for evalpoly (#251)
• expint(n,x) is incorrect for negative integers n (#259)
• more expint bugs (#263)
• including Jacobi polynomials and Wigner functions (#267)

Merged pull requests:

• Exponential integral function (#236) (@augustt198)
• missing promotion methods for loggammadiv (#240) (@stevengj)
• expint: Type stability, NaNs (#248) (@augustt198)
• Multiple changes to CI (#252) (@giordano)
• replace evalpoly with at-evalpoly (#253) (@stevengj)
• fix test deprecation warning (#254) (@stevengj)
• precompute the test inputs (#255) (@stevengj)
• add expinti function (#257) (@stevengj)
• use mpfr_eint for expint/expinti of BigFloat (#258) (@stevengj)
• fix expint for negative order (#260) (@stevengj)
• Fix reference to expinti in functions overview (#261) (@giordano)
• more expint fixes (#262) (@stevengj)
• expint: fixes for #263 (#268) (@augustt198)