Flume

Flume is a fast, light utilitarian math environment. It can be used from the command-line for simple calculations, or in GUI form as a desktop calculator or a one-column spreadsheet. Calculations are performed with your CPU's floating point hardware, so the range and precision of numbers are somewhat limited, but suitable for most uses. Flume uses the FLTK user interface library, which makes it is especially efficient on Tiny Core Linux. The source code of Flume is released under the GNU license. See http://www.gnu.org/licenses/ for more details.

Current version: BETA 0.9.2. Discuss at the Tiny Core Linux Forum.

Screenshot

(larger view)