Abakus is a simple calculator for KDE, based on a concept of Roberto Alsina's. Think of it as bc (the command-line calculator) with a nice GUI.
Abakus wasn't the only calculator to be developed due to Roberto's brainstorm. You may also want to try Ariya Hidayat's SpeedCrunch (maintained/improved by Johan Thelin). In fact many of Abakus's user interface niceties were donated from SpeedCrunch.
Important note: Although I actually still use abakus from time to time, it has fallen far to the back of my list of "maintained software packages". I have uploaded a version (0.92) that builds for KDE 4 based on occasional requests I receive by email, but you should consider feature development stopped for now (unless someone else picks it up). For instance, I have not updated the screenshots (not that it's substantially different now).
Latest version is 0.92, which had the following changes from 0.91:
- Better KDE 4 support, including use of the standard KDE 4 build system.
- More bugs (sorry).
- Keyboard accessible.
- User-defined functions.
- Includes an RPN mode for old-school calculator users.
- Includes a scrollable history window, which can be hidden for compactness. When the history pane is hidden, results are shown directly in the edit line.
- Previous expressions can be entered using the up and down keys.
- Built-in functions, including a full suite of trigonometric, logarithmic, and exponential functions.
- Fully supports KDE, so it supports KDE features automatically, including some automatic DCOP support.
- The calculator supports using variables (which are saved between different runs).
- Automatic parentheses closing.
- Includes predefined values of pi and the natural exponential base (e).
- The last successful answer is stored in the variable ans.
- Compiled in C++ for fast startup speed.
- Both ^ and ** are supported for exponentiation.
- Exponentiation is (correctly) right-associative. What this means is that 2 ^ 3 ^ 2 returns 512 instead of 64.
- Expressions like 3 + -2 are accepted, instead of requiring a separate sign-inversion symbol like the TI family of calculators.
You can download it here: abakus-0.92.tar.bz2 (276K)
c08b2db5920418d38813f3947530d9f17c72bf0a abakus-0.91.tar.bz2 cec68da3edbaa590bbdc6ac960b10c0878ce0d75 abakus-0.90.tar.bz2 d0a40c5ece3b143ad8f7e0b59a8a91fdcae0318d abakus-0.85.tar.bz2 b6517228b85d56c50f99f56ed7178f47663c781f abakus-0.80.2.tar.bz2 5926389cb1ca3b3959bbc526f133e8d16b28045e abakus-0.76.tar.bz2 da7017042f2d911016597801f357f47cbbec3e56 abakus-0.75.tar.bz2 40f5413239cf04d1fa3f883510282de6149d461b abakus-0.70.tar.bz2 1434ddb3ad6f18ef3819f0d05c84a7a756cfd285 abakus-0.61.tar.bz2 e56f7a162e9d61898d5332e8b6377b86d151bb72 abakus-0.60.tar.bz2
56eaa5d98caa96973c09d62ae7da3061 abakus-0.91.tar.bz2 7b86a467de78108840a8c37277a12f0e abakus-0.90.tar.bz2 b66fafc26c72c0911c21674a1ec46777 abakus-0.85.tar.bz2 4edfdf6982eebea11c1c83292edd0dc7 abakus-0.80.2.tar.bz2 9524fa1eeae5063af572c22d15052a79 abakus-0.76.tar.bz2 17c23c3f33fb9a686d6753cf08128eb1 abakus-0.75.tar.bz2 c80199d153c34d3a1bbbd444c9fbacfc abakus-0.70.tar.bz2 d2b5cc349f02570dae53ea345d3a344e abakus-0.61.tar.bz2 bf8f174706695a367c335c04571e94f4 abakus-0.60.tar.bz2Notes:
- You need flex and bison installed to build the program, as I've not included the generated sources with the package.
- On the other hand, although the MPFR library is (still!) supported, it is not required.