FAQ (Frequently Asked Questions)
is the difference between the US version of jExacter (jExacter2U)
and the European one (jExacter1E, jExacter2E)?
only difference is that in the European version the decimal-point
is comma and the digit group separator is a point.
there any pre-conditions before installation of jExacter?
- Yes. You have
to check for existence of a folder C:\Program Files (C:\Program
Files (x86) in the case of 1Ecater2U/2E) on you computer. If not,
you have to create it. Without the Program Files folder the application
(especially the full version) could not function correctly.
does the customer really pay for via Kagi?
- The customer
pays for the basic version, limited to 6 operations: addition,
subtraction, multiplication, division, decimal logarithm and any
base logarithm, as well as for the mode CASH REGISTER.
Once the payment in the period of 31
days made, the customer has possibility of the "Full
version activation" (Help menu), which is local (no need
to be connected to the internet), totally free and gives him access
to all functions, presented in "Why jExacter" and "Read Me".
to Kagi's License Code Lookup
I have my initial 7 digit number back. Meanwhile there is some problem
- jExacter does not accept it and warns that "the activation
is not possible, because (...)". What should I do?
close the application.
- In the
case of jExacter (jExacter1E)
go to the folder
C:\Program Files and delete the jexdll (jexEdll) text file.
- Then go to the C:\Program
folder and delete four text files: cos, sin, vir, wla.
Then launch jExacter
and execute the "Full version activation"
from the Help menu of the application.
- In the case of 1Exacter2U (jExacter2E) do the same with the C:\Program
Files (x86) folder.
some reason, maybe for exceeding the period of 31 days for purchase,
I cannot realize the "Full version activation". jExacter
still warns that "the activation is not possible, because ...".
As I have the original 7 digit Kagi's number, I decided to download
and install the application once again. Without any result. What can
- Maybe, when
downloading and executing any application from this Website, Windows7,
Norton or any other "guard" will find a danger. In fact,
there is no danger for "System configuration", etc. So you should
simply ignore this warning.
I enter what I have to calculate, ex. 654 + 123, and press Enter.
Now, if I do the same, jExacter does not react.
key is intended for validation of formulas and arguments in
the corresponding windows only. To execute any calculation from
a validated formula, you should go to the Exec menu and choose
Run or Run & Report (Ctrl-R for Run or Ctrl-T
for Run & Report). The only exception is in the mode CASH
REGISTER, where Enter is used to add consecutive amounts
and operation results.
to calculate (tg(pi/2+x)+y)/z ?
'Formula entry' from the menu Formula or press CTRL-U or simply
click into Formula window. There is a text editor in the Formula
window that becomes yellow.
- Type (tg[pi/2+x]+y)/z
or simply pi/2+x,
select it, press the 'tg' key in the System Keyboard, add
"+y", select all, click on
'(…)' just under the Formula window
and finally add "/z".
- Validate the formula by clicking on
'OK' or doing ENTER.
- Use 'Arguments entry'
from the menu Arguments or press
CTRL-W. The Formula window returns to white whereas Arguments
window becomes yellow. The first variable,
"pi", is ready to receive the value.
- If the value should be pi=3.14…,
"pi" (the same for constant 'e'
when required) and press "Enter"
or click on 'OK'. The
windows presents the next variable,
'x', ready to receive its value.
- Type the value, e.g. "0.000000001"
Press "Enter" or click on 'OK'.
If you wish to save it, click on 'Save'.
- Repeat the action for all variables from
- If you need to modify some variable, you
can access it directly - use 'Argument
selection' from the menu Arguments
or press CTRL-G and type the variable name into the little
window just under the Argument window. Press "Enter".
- To calculate, use 'Run' or 'Run & Report'
from the menu Exec or simply press CTRL-R / CTRL-T.
like to know how many primes are there in 1,250,000 to 10,000,000.
- To know it you can apply function pra[i;j],
where i,j are limits of the range. As a result of
pra[1250000;10000000] you will find
a liste of all primes in the range <1250000,10000000> in
the report, with the number
closing the list.
- I would like to study the
prime gaps, i.e. the differences between two succesive prime numbers.
Is it possible
- Yes, certainly. Simply run the function
prn[mo[n+1;1]]-prn[mo[n;1]], with initial
At every execution you will obtain a consecutive gap. Choose the
mode 'Run & Report',
so you will have the number of every execution in the report.
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