Important Request

[math7]

The programmers of the HP 50g incorporated that and other tools into the calculator, if they did it was because they thought it was useful and beneficial for statistical calculations and based on it realize what curve is best fit a series of data dices. In the HP Prime there are 13 options for adjusting curves for the series of data entered in the numerical view. Please see attached pictures. A "simple view" can be observed that the "cubic" model is better suited to most points than the "exponential" model. This is seen with the naked eye, but you should not rely on the view. Then the dispersion of the data the calculator could calculate it for the 13 internal models that it has instead of having to do it one at a time, and of all those with the lowest dispersion will be the "best fit" curve. It is cumbersome for the user to have to test the 13 different models to see which fits better, for that is the calculator. Derivatives or integrals can also be done by hand, but for that the calculator also brings it in, not for the user to do it but it. A system of 2 x 2 equations can be solved one in paper, but the calculator also does it by itself, for that it comes from factory.

It can not be possible for the user to have to test all 13 different models and point on a paper as Joe Horn says to decide next which is the curve that best fits and therefore have his equation. The Prime must calculate for the 13 models which is the one that best approaches all the data entered, if the HP 50g does, with more reason HP Prime with a processor of 400 MHz.