The following has to do with the ENTRY, STAT, REGRESSION

BUG! At present it does not seam to plot X vs Y, but just the last entry verses an increment count of one. For example x=[1,1,1] y=[2,2,2] ListPlot(x,y) does not plot points at (1,2). It plots points at 1,1 and 2,1 and 3,1 and so forth. It only looks at one list and plots its points in increments of 1 in the x direction. (Same is true for ListPlot([1,1,1],[2,2,2])) I bet this is an easy fix, but at present it makes the regression analysis features nearly useless.

FEATURE REQUEST: Allow more than one list to be plotted at a time, and the ability to display curve fit data to both data sets. ListPlot([x,y],[x1,y1],[x2,y2]....). I think that is supposed to already be the case, although I have had no luck doing it.

Add a very useful feature I have yet to see on a graphing calculator, the use of the fit regression equations to calculate the shortest distance between two data sets. For example if the calculator had a graphical button that ran a script which gave 1) the shortest distance between the two selected curves. 2) the location of intersection of that line and the two curves 3) the angle that curve makes with respect to one of the axis.

With such information it is easy to find the surface area of the conical section described for use in flow calculations etc. This would be a great tool, because it allows for a quick iteration, of something that used to have to be done on drafting boards, CAD stations, and or Excel. I can think of several practical application where such a tool could be used.

Additionally, I noticed there is a loadlist() command, but I have no idea how to get a txt file to a location where the iphone can load it. I have tried emailing it to the phone, cutting it into memory, starting space time and pasting it. But that does not work. Space time does not seam to let you past things from outside the program.