WiSCy99 - Version 4.22 The complete and easy-to-use scientific calculator. The results of calculation can be viewed, printed as graphic or text, or saving to disk. The UnitConverter is pre-configured to convert over 100 units in 8 categories. Features: Arithmetic and logical operators; Common functions such as exp, ln, sqrt, sqr etc.; Common, trigonometric, hyperbolic complex functions; Trigonometric, Hyperbolic functions; Numerical Integration; Equations can be solved; Special functions (Gamma, Bessels, Si, Ci, erf); Statistic functions (Average, Standard deviation, Sum, Random, Gauss random, statistical variance); FOR-type loop; Tape of results; Assistant and debug: error position fixed; Plot f(X), Contour Plot f(X,Y), Color Shading f(X,Y), real 3D-Plot f(X,Y), Derivative, Fit; Print results, graphics and print preview; Save graphics to BMP, WMF, EMF formats; Decimal, Hexadecimal and Binary bases; Fixed point, Scientific, Engineering and Sexagesimal notations; Radian and Degree modes for trigonometric functions; Precision: 10-12 significant digits, and more. New 3D graph and appearance.