Version 1.4.0

Arbitrary precision addition, subtraction, multiplication and division
Arbitrary precision square root
Arbitrary precision natural logarithm
Improved expIntegralEi using arbitrary precision apparatus

Version 1.3.0

Test apparatus for visualizing the accuracy of functions
Improvements to multiple functions based on tests

Version 1.2.9

Reworked Airy functions for accuracy in left-half complex plane
Improved Hurwitz zeta

Version 1.2.8

De novo expIntegralEi evaluation
Improved upper incomplete gamma function
Improved exponential integrals
New functions: digamma, hypergeometricU, Whittaker functions, legendreQ

Version 1.2.7

Fix elliptic integrals for large real arguments
Additional functions: exponential integral and related integral functions, harmonic number, Gudermannian

Version 1.2.6

Improved elliptic functions for large argument
Reorganized hypergeometric backend
Additional functions: Struve, Fresnel integrals, incomplete beta
Improved complex differentiation and dependent functions
Miscellaneous fixes and improvements

Version 1.2.5

Functions for real and imaginary parts
Real Bessel function zeros

Version 1.2.4

Better error handling

Version 1.2.3

Fix spherical Bessel functions for negative argument

Version 1.2.2

Fix pow() for negative first argument
Add Airy prime functions