J. Andrzej Wrotniak - Software Products

Put this program int...

Uptime Snooper

Put this program into your Startup folder (or install as an NT service) and it will keep track of your system uptime. It shows the current session uptime, total and average. Sessions are also logged into a text file. Additionally, Upsnoop will monitor the status of up to five selected programs, optionally restarting these which are not running. For system administrators and the users who lke to know more about their system. Uptime Snooper is a utilities software.

Keywords: uptime system administration logging network segment

A tiny, but very cap...


A tiny, but very capable numerical calculator for Windows. It differs from others in the way you calculate your expressions: enter the whole expression at a time, like "2+3.9/7.1-3 sqr 5", and only then hit Enter to compute the value. The expression stays displayed so that you can correct or othwerise modify it, and recompute at will without having to re-enter everything from scratch. Calculations are done with 18-digit accuracy, and the results can be displayed with adjustable precision and format (including deg/min/sec). Results can be also converted between various units of measurement. In addition to basic arithmetic operators and 30 standard functions, Midget has 12 variables, where calculation results can be stored, and then used as arguments in other expressions, like in "2A+B/7". The status of calculations is saved to disk so that next time you run the program, you start at the point you left. The program is continuously improved since 1996, so it reached a highly polished state. A Help file is included, and there is a Web support page. If you are still using the crummy calculator applet included with Windows, it is time to try Midget. The chances are you'll end up using it on a permanent basis. This business software is listed under calculators, science, engineering, education.

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An addictive logical...

Mr. Matt

An addictive logical puzzle game for Windows, similar to the classic Boulderdash, but with many enhancements and extra touches. Teen to adult age bracket, no gore or violence. You are Mr. Matt, digging caves while eating apples and avoiding falling stones or bombs. The trial version includes 10 games with 49 levels, ranging from simple to frustrating; over 500 extra games (2500 levels written by other players) and game editor are available upon registration. Sampled sound effects and graphics are extensible by the user. Your best results can be matched against others in the Web-based worldwide Hall of Champions. Trial version has no nags and no expiration. The program supports 24 languages (Bulgarian, Chinese, Croatian, Czech, Danish, Dutch, English, French, German, Greek, Hungarian, Icelandic, Indonesian, Italian, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Slovene, Spanish, Swedish, and Turkish). This is a shareware listed under puzzles, mind games category.

Keywords: mr- matt puzzle mind games boulderdash wrotniak addictive logic ages synchronous and asynchronous

Many scientific and ...


Many scientific and engineering programs generate numeric output which needs to be presented graphically. Statmaster is a simple way to do that, reading a text file with data arranged in a space-separated table, and drawing up to 8 pages of histograms and XY plots, up to 64 graphs per page. The way in which the data is presented is defined in a simple Windows inifile, and most graph attributes can be adjusted as needed. The program is run from the command line, as in "statmaster setup.ini mydata.dat" which allows for easy automation of the process in a simple batch file. It does not provide a runtime user interface to adjust how the graphs are presented, and is therefore best fit for automated presentation of some other application's output. This is a freeware listed under education mathematics category.

Keywords: math science engineering statistics graphs plots wrotniak encode avi

A spherical geometry...


A spherical geometry calculator and navigation aid, aimed at sailors, pilots and navigators on one hand, and airmchair travellers on the other. Spheric will compute distance between points on Earth (including highly accurate geodesic and elliptic arc approximations), cumulative distance for a serias of points, range and bearing, azimuth, midpoint, great arc intersections, distances between great arcs and points, and some more. Various display and input formats (deg, rad, dms) are provided. Data can be saved to, and loaded from, ASCII files, and the program status upon exit is saved to disk, to be loaded on the next run. A Help file is provided. Spheric license is shareware and it is listed in geometry, navigation software.

Keywords: spherical geometry calculator navigation geodesic scsi usb

The Mother of all Ca...


The Mother of all Calculators, a Swiss Army knife for scientists and engineers. Perhaps the most capable scientific/engineering calculator for Windows. On one hand, this is a calculator: evaluates expressions with more than 100 functions (trig/inverse, log/exp, statisical distributions, Euler, conditional, user-defined. Expressions are entered in the customary algebraic notation, and only then evaluated. After computing the value, an expression can be modified or corrected, and recomputed at will. There ara also unit conversions, physical constants, computer math (binary, octal, hex), and function graphs included. For more advanced users, Kalkulator provides less trivial operations: numerical integration and differentiation, interpolaton (linear or cubic spline), statistics (mean, s.d., histograms, polynomial regression), column operations on stat data, polynomial roots, linear algebra (vector/matrix operations and systems of linear equations). Hard-to-find features: systems of non-linear and differential (ODE) equations, multi-argument function extremum search and point or histogram fitting with an arbitrary function. Most importantly, advanced features don't obstruct the basic ones. You can use as much of Kalkulator's capabilities as you need, without being hampered by the program capabilities you do not need. Disk save/restore, Help file and other niceties are also included. Kalkulator has been evolving on various OS platforms for the last 15 years, being refined and polished through all this time, and its author has more than 25 years of active experience in numerical methods and software development. Kalkulator is a shareware categorized under science, engineering, math, education tools.

Keywords: calculator math science engineering numerical methods statistics differential equations linear algebra nonlinear equations interpolation wrotniak advanced sci eng simple expressions differential equations subscription fees

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