Although many things such as emotion and thought may be difficult to measure, some things are much easier to quantitize. Measurement Converter aids in converting one measurement to another similar measurement. Why people care so much about measurements and coversions still remain a mystery to one such as myself. I am convinced however that there could be a useful purpose for it.
Flatland Flatland, A Romance of Many Dimensions. As the author puts it, the stuff that dreams are made of. This highly imaginative book has been very influential. It is now available totally free in a high quality PDF format with the original drawings.
Archim Archim is a program for drawing the graphs of all kinds of functions. You can define a graph explicitly and parametrically, in polar and spherical coordinates, on a plane and in space (surface). Archim will be useful for teachers and students.
jExacter A scientific calculator provides calculations within a limit of 1 to 240 significant digits. According to run mode chosen, the calculation may be followed by a report with a list of arguments and all intermediate results in chronological order.
CalcBoard The next step in calculations.The CalcBoard supports: Calculations using units; Interval arithmetics; A wide range of standard functions; Easy (calculator-like) interface; A set of persistent variables to assign expressions to.
math4u2 (Linux + VM) math4u2 ist ein Computer-Mathematik-System, speziell konzipiert für den Einsatz in der Vorlesung, im Unterricht und beim Selbststudium.
Das math4u2-System besteht aus dem math4u2-Tool und dem math4u2-Server.
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