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CONTENT
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- Content .- Fans (2) .- Knowledge Base  . 

PhyxCalc

   3 Revision 199  

KDE Scientific

Score 56%
StrahlexStrahlex
PhyxCalc
zoom

PhyxCalc
zoom

PhyxCalc
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Version Control:  Link
Blog:  Link
Downloads:  372
Submitted:  Feb 25 2012
Updated:  May 21 2012

Description:

PhyxCalc is a general purpose calculator program that evaluates written lines of mathematical expressions. It can also unterstand expressions with physical units as it is written by hand. This program is under development and is target to be cross platform.

This program follows the idea of an earlier version of PhyxCalc, written in Delphi, which can be seen at http://sites.google.com/site/xschirm/home (site and program is in german language, see screenshot or follow the download link).

For further information please check out the development blog, a version for mobile platforms currently in work. Developers and packagers are welcome, especially testers for Mac are needed.

SourceForge: http://sourceforge.net/projects/phyxcalc/
Development Blog: http://phyxcalc.blogspot.com/
Build Service: https://build.opensuse.org/package/show?package=phyxcalc&project=home%3AStrahlex

NOTE: Windows users must have MSVC++ 2010 Redistributable installed and the Qt-Dlls in app-directory or system32




Changelog:

*Revision 198:
- added more functionality to plot window
- readded multiplication without multiplication sign
- fixed some critical bugs
*Revision 195:
- added functions for logarithmic dataset creation
- added plot dialog
- fixed some bugs
*Before Revision 195:
-added plot functionality
-added help browser
-added support for octal numbers
-added support for BCDs
-added quick notation for functions
-improved syntax highlighter
-added ans function and variable
-added support for functions
-added advanced syntax highlighter settings
-improved mobile support
-reviewed whole calculation code




License: GPL
(Linux Version in OBS)
MS Windows(Windows installer)
other(Rev135-Symbian-Belle unsigned sis-package)
(Rev198 Source Code)
MS Windows(Rev199-Win32 Zip-File)
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 Brilliant

 
 by vishal8492 on: Mar 3 2012  
Score 50%
vishal8492vishal8492

That is just brilliant !!


Reply to this

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 Re: Brilliant

 
 by Strahlex on: Mar 6 2012  
Score 50%
StrahlexStrahlex

Thank you


Reply to this

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 Gorgeous!!

 
 by RGBkde on: Mar 11 2012  
Score 50%
RGBkdeRGBkde
Home

I like your app a lot, it have a brilliant future!

Just a small feature request ;)

Is it possible to have units sets predefined and directly available on program start?

Regards


Reply to this

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 Re: Gorgeous!!

 
 by Strahlex on: Mar 12 2012  
Score 50%
StrahlexStrahlex

Thank you for your comment, it was a bug in the last version. Normally si units, imperial units, a small set of currencies and data units should be predefined.
Update to current version, delete your settings dir (settings > open settings folder) and you are fine. To alter predefined definitions, just edit the definitions.txt.


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 Rounding problems?

 
 by RGBkde on: Mar 15 2012  
Score 50%
RGBkdeRGBkde
Home

Not a big problem, but still a problem ;)
root2(-1)
=-2.71051E-20-i
exp(i*π)
=-1-5.42101e-20i


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 Re: Rounding problems?

 
 by Strahlex on: Mar 15 2012  
Score 50%
StrahlexStrahlex

This happens, because pi can not be represented correctly by binary saved floating point numbers. PhyxCalc uses no arbitrary precision library yet, however, if you know a know a good portable arbitrary precision library please let me know.


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 Re: Re: Rounding problems?

 
 by awes on: Apr 11 2012  
Score 50%
awesawes

I know those two:
- http://gmplib.org
- http://www.ginac.de/CLN


Reply to this

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 Re: Re: Re: Rounding problems?

 
 by Strahlex on: Apr 11 2012  
Score 50%
StrahlexStrahlex

The problem is, both libraries (CLN seems to depend on GMP) are developed for unix systems, if I could get them to work on windows and symbian it would be great. The other solution might be to use arbitrary precision libraries only on unix systems...


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.

 Calculation Volume out of 3 lengths wrong?!

 
 by rytnebwa on: Apr 29 2013  
Score 50%
rytnebwarytnebwa

Does this only happen on my machine (Arch Linux 3.8.8)?

1m*1m*0.01m
=10mm³

This worked well on Windows Version 2.5.3:

1m*1m*0.01m
=0.01m³

I'm glad you keep this great project alive! Good job!

Robert


Reply to this

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 Re: Calculation Volume out of 3 lengths wrong?!

 
 by Strahlex on: Apr 29 2013  
Score 50%
StrahlexStrahlex

Thanks for posting the bug. PhyxCalc 3 has actually nothing to do with the old version, except the principal idea.

The bug is actually that it outputs 100m(m^3) which in some way correct, but wrong. I think a should be possible easily.


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 Re: Calculation Volume out of 3 lengths wrong?!

 
 by Strahlex on: Apr 29 2013  
Score 50%
StrahlexStrahlex

Fix is in the repositories now.


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.

 Re: Re: Calculation Volume out of 3 lengths wrong?

 
 by rytnebwa on: Apr 29 2013  
Score 50%
rytnebwarytnebwa

Holy Smoke!

That was quick. Thanks. I have tried the new version. It works for the given example:

1m*1cm*1mm
=10000mm³
// correct

but seem to have still problems with volumes such as:

1dm³ // (100mm*100m*100mm = 1l = 1000ml = 1000000mm³)
=1e+08mm³
// wrong: 1e+06mm³

1e+06mm³ // again 1l
=1000m³
// wrong: 0.001m³

1l -> m³
=0.1m³
// wrong: 0.001m³

1m³ -> mm³
=1000mm³
// wrong: 1e+09mm³

1gal -> l
=3.78541l
// correct

I hope that helps. I'll keep testing!

Cheers
Robert


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