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UltimaCalc is a graphical calculator. Unlike most calculator programs, UltimaCalcdoes not try to emulate a hand-held device. Its main window consists of just twoedit boxes. Enter an expression into one, hit the Enter key, and view the result inthe other edit box. The simplicity of the main window means that it can occupylittle screen area and thus be kept immediately available for use, staying on top ofother windows if you wishCalculations are performed to a precision of over 38 digits, but you can choose tolimit the display to just 8, 12 or 16 digits, and view these in a variety offormats. The 'engineering' mode understands suffixes such as k (kilo) and M (mega),and shows results using these suffixes, where possible. You can also view theresults in hexadecimal format, or have them approximated as various ratios.UltimaCalc works with algebraic expressions and has all the standard functionsexpected for a scientific calculator. Other functions find the slope of a line giventhe coordinates of its end points, or calculate definite integrals. You can defineyour own functions, too.From the main window, you can open other windows for specialised calculations.UltimaCalc has a comprehensive context-sensitive help system to explain how to usethese windows.You can create bar charts, pie charts and stacked bar charts in 2D or 3D, linecharts or ribbon charts. Add a title, subtitle and legend. Choose colours and createyour own styles for hatching or cross-hatching (useful if you intend to photocopythe results in black and white). Select the fonts you like and design your ownlayout by dragging its elements around.With the Regression window you can plot a scatter chart and show a least squaresregression line. Or you can fit a polynomial to your data. If the data depends onmore than one variable, you can tease out the effects of each variable. Try using anabsolute deviation fit to minimise the effect of outlying values.You can plot functions. Specify the precise starting condition(s), the endingcondition(s), and how the variables are to change at each step. Specify thelocations of the axes if the automatic settings are not appropriate. Show multipleplots together.The Standard Deviation window calculates the mean, median and standard deviation ofthe entered data. Other windows solve Simultaneous Linear Equations, performNavigational calculations, or solve triangles: If you know the length of one side,and two other sides or angles, UltimaCalc will calculate the remaining sides andangles and display the triangle.All graphs and charts can be saved as image files. Calculations can be copied to theWindows clipboard as plain text and pasted into other applications. The calculationsdone in the specialised windows can also be saved in data files, along with notesabout the calculation. Most such data files can be edited in Notepad.UltimaCalc also works with dates. It can tell you the date of Easter in any yearsince the Gregorian calendar started. It can calculate the date a certain number ofdays or weeks from another date, or convert a date to a Julian day number.
###Evaluation copy available on request.Screen shots available at http://www.ultimacalc.com/html /screen_shots.htmland see also http://www.ultimacalc.com/asse ts/images/screenshot.gifConta ct:Anand Shraddhan2 Ty'r Porthmon, Bridge Street, Brecon, Powys LD3 8AH, UK01874 620130queries@ultimacalc.com
