This is a calculator software designed for scientists, engineers, professors, and graduate students. It's called Complex Number Calculator Precision 45 and can handle mathematical formulas of any length and complexity.

One of the best things about this calculator is that it offers a calculation history, which can be stored in a text file or printed out. This is great for those who need to refer back to their previous work. Additionally, there are ten variables or constants available for storing commonly used numbers, and a pre-built Common Constants list with fundamental constants. There is also an unlimited User Constants list, making this an incredibly versatile tool.
The precision of calculations is impressive, with up to 45 digits offered. The calculator includes a variety of functions, such as trigonometric, hyperbolic, inverse, and combinatorial functions. Additionally, there are several special complex functions, including the Gamma function, Lower Incomplete Gamma function, and Upper Incomplete Gamma function, among others.
One of the best things about this calculator is its backward compatibility with several other calculators, including the College Scientific Calculator series, Scientific Calculator Precision 54, and others. Any formula which works in College Scientific Calculator will work in this calculator, making it a great choice for those who need to switch between multiple calculators.
Overall, I highly recommend the Complex Number Calculator Precision 45 for those in need of a fast, reliable, precise tool for performing calculations with complex functions. It's user-friendly, versatile, and incredibly accurate, making it perfect for a variety of different applications.
Version 1.0.1.0: improvement
Version 1.0.0.4: Trial scheme improvement.
Version 1.0.0.3: Corrections
Version 1.0.0.0: N/A