ill do some more research and try to find out exactly which is it is: here is my calculator so far, its made in flash and deals with complex numbers: it isnt yet finished but it will also have a graphics side for plotting real graphs and complex graphs(3d):

http://img146.imageshack.us/my.php?image=calculator3jq.swf (round, ceil and floor obivously aernt working yet, nor is memory allocation or equation navigation and editing, everything else should work fine)

syntax for obscure functions:

logz finds the log of the number to base z, its syntax is:

"base logz number" - for example the log of 3.5 to base (-4+5.51i) would be

(-4+5.51i) logz 3.5

zroot finds the z'th root of the number, syntax is:

"root zroot number" - for example the (3+4i)'th root of 5 would be

(3+4i) zroot 5

here are some renderins (in beta) for the graphics side: the engine im using is not the one that i will use for the proper renderings as this engine uses cameras which obviously slows things down alot - to see them properly and at a good enough speed youll need flash player 8/beta

http://img372.imageshack.us/my.php?image=graphics7vz.swf

(y = re[sin(z)]/20 )

http://img398.imageshack.us/my.php?image=graphics4wl.swf

(y = re[ z^conj(z) ]/40 )

http://img378.imageshack.us/my.php?image=graphics9yx.swf

(y = mod((z^conj(z)) / (e^z)) /40 )