Extractor - High precision calculator that has the precision of calculation adjustable within the limit of 1 - 240 digits

Version:Extractor is an application of scientific calculus of high precision. The precision of calculation is adjustable within the limit of 1 - 240 significant digits (30 by default).The largest/smallest accepted number is 1E±1,000,000,000.1.0

License:Free To Try$20.00

Operating System:Mac OS X

Homepage: mapage.noos.fr

Developed by:

Calculation is carried out starting from the formula of the length limited to 250 characters. The formula, written in natural notation, is built of operators, constants and variables. The number of arguments is limited to 73. The real number of arguments depends on the level of the sophistication of the formula.

The syntax of the formula is verified and all error is interpreted. The compilation of the formula (OK button) is followed by the optimization of the calculus. Extractor allows the user to change any argument or formula at any moment.

EXACTER makes the direct acces to any argument possible. Any argument can be entered in natural or scientific notation. In the case of periodic number, the use of the parentheses is authorized, e.g. 1.0(53) that corresponds to 1.053535353... .

Every entered argument is tested and all error is interpreted. The operator can choose a computation mode with a 'phase monitor', a graphic indicator of the calculation advancement.

The operator has a direct access to the HELP file which, among others, contains the presentation of all the operators. The access to Help file is free at any moment, and one can add any remarks to the text.

The operator has at his disposal another system file called FORMULAE (formulae library), as well as the file CONSTANTS where any constant (with or without its name and possible comments) may be registered.

According to run mode chosen, the calculation may be followed by a report contanining a list of arguments and all imtermediate results in chronological order.

The result can be rounded off freely (ROUND button). To accelerate the rounding one may cut any part of the result and round the rest off.

The execution may be interrupted at any moment (Q key). Any interruption like that is followed by automatic recording of the report. In the set of operators, one can find a division modulo as the rest of division by a real number, nth root, a logarithm with any base, a product of all successive numbers of any range, a recursive calculus, incremental calculus, base conversion, some functions concerning primes, etc.

Besides, EXACTER has a simple and direct mode of calculation called CASH REGISTER that enables a continuous addition of numbers, products, percents et divisions (precision limited to 25 digits) with the control of the syntax of arguments and operations.

Limitations:

· Runs on Mac OS Classic only