*******
The
precision is adjustable within the limit of 1 - 240 significant digits (30
by default).

*******
The user can choose a System Keyboard (48 standard functions) as well
as the **Private one (with 48 customizable keys,
see Read Me)**.

*******
Every "private" button can be titled and linked to any formula entered by
the operator at any moment and for permanent using.

*******
Calculation is carried out starting from the formula of the length limited
to 248 characters.

*******
The formula, written in natural notation, is built of operators (max.73),
constants and variables.

*******
The syntax of the formula is verified and all error is interpreted.

*******
The compilation of the formula is followed by the optimization of the calculus.

*******
Incremental (for any number of variables with different incrementation values
) as well as recurrent calculus are possible.

*******
The formula, as well as any argument can be modified by the user at any moment.

*******
jExacter makes the direct access to any variable.

*******
Any argument can be entered in fixed or scientific format.

*******
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 largest/smallest accepted number is 1e±1.000.000.000.

*******
"Infinity", "NaN" (Not a Number), "TLN" (Too Large Number, i.e. a number >
1e+1.000.000.000 and inferior to Infinity) can be entered and displayed as
a result and correctly treated as an itermediate result in any context.

*******
There are two predefined values, **e** and
** pi**.

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

*******
The operator has at his disposal another editable system file called FORMULA
FILE ("formfile"), as well as the file CONSTANTS where any constant (with
or without its name and possible comments) may be registered.

*******
According to the run mode chosen, the calculation may be followed by
a Report containing a list of arguments and all intermediate results
in chronological order.

*******
A Find function was added to the Report window, as the report might
be very large, especially in the case of the list of primes in some
range (exemple : pra[0;10000000] gives all primes from 0 to 10 millions,
e.g. 664579 primes organized in 65033 report lines).

*******
Every file controlled by jExacter can be printed directly from the File
menu.

*******
The formula, the arguments, the result, the precision level as well
as the report never disappear from the screen. When moving from one
window to another, the window colors change, so the user is never lost
in his action.

*******
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, number format conversion (between any bases in the range
2...16), liste of all primes from the range[a..b], nth prime, etc.

*******
The use of a special variable name "me" (memory) is authorized. The operator
enters the value of "me" before the first run, and at every successive execution
"me" takes the value of the last result. This enables the recursive computation.

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

*******
Supports copy / paste / cut
/ Save As / etc.

*******
The execution time is measured and displayed.

**Operators**

+ addition

- subtraction

* multiplication

/ division

div division (no remainder)

inv inversion

mod division modulo

gcd greatest common divisor

^ power

abs absolute value

int integer part

inr the nearest integer

dec fractional part

! factorial

pro product from ... thru ...

max max.
of 2 numbers

min min. of 2 numbers

mo increment

bas conversion of the base-n to
the base-m in the range [2..16]

r nth
root

r2 square root

ln natural logarithm

lg2 binary logarithm

log decimal logarithm

lg any base logarithm

rd degrees
=> radians

deg radians => degrees

sn sine

cn cosine

tg tangent

cg cotangent

asn anti-sine

acn anti-cosine

atg anti-tangent

acg anti-cotangent

sh hyperbolic sine

ch hyperbolic cosine

ht hyperbolic tangent

hc hyperbolic cotangent

ash hyperbolic anti-sine

ach hyperbolic anti-cosine

aht hyperbolic anti-tangent

ahc hyperbolic anti-cotangent

pra list of all primes
from the range [n..m]

prn value of nth prime number

prx prime number
nearest to x, x : real

pr1 Is number
"i" a prime ? (otherwise the list of all prime divisors)

pr2 list of all common prime divisors
of two numbers

**Warranty**** This software is offered "as is"
without warranty of any kind. In no event shall the author be liable for
incidental or consequential damages, including but not limited to loss of
use, loss of revenue or profit, loss of data or data being rendered inaccurate,
or losses sustained by third parties even if the authors have been advised
of the possibilities of such damages.**

**Technical Support**** Sorry, no support or help is available,
but please send any comments or "bug" reports via email to:
jexacter@kagi.com**