Signed area graph problem

[jte]

(11-25-2016 07:55 PM)lrdheat Wrote:  Possible graphing app problem:

In home, integral from 0 to 1 of (sqrt(tan(X)+1) - sqrt(sin(X)+1))/x^3 correctly produced 0.226409969741.

In the graphing app, signed area from 0 to 1 correctly fills in the area of interest, but produces the hourglass symbol...after several minutes of the hourglass, I gave up and had to do a pinhole reset to exit out of the problem.

The Signed Area feature of Function simply passes the work off to other parts of the system. What expression are you entering in Home?

When I tried ∫(F1(X),X,0,1) in Home (with F1(X) defined as (sqrt(TAN(X)+1)-sqrt(SIN(X)+1))/X^3) my emulator behaved just as the Signed Area feature did. A significant amount of computation time (~14s) was required before the approximate answer came up. I thought perhaps it was locked up, given the time it was taking and the nature of the posting. With either way of finding the integral, pressing ON/C aborted the calculations.

Which version of the software are you using? Are you using an emulator or a physical calculator?