can the prime really not solve this integral?

[jte]

(02-27-2014 11:24 AM)CR Haeger Wrote:  

(02-27-2014 06:47 AM)DeucesAx Wrote:  I tried solving int(x^3/(e^3-1),x, 0,infinity) (this I ti89 notation, I did not type it like this) on the Prime without success. My nspire does it, even my ti89 does it without a problem. Please tell me this is a user error, otherwise I finally throw the prime out of the window.

Might be user error.

With CAS exact unchecked get 6.49 for the definite integral. It does seem to hang in function app if you try to compute signed area for say x=0-100.

For indefinite solution I'm not sure.

Are you performing a signed area computation for X^3/(e^X-1), from 0 to 100, in the Function app Plot view? I just tried this on the emulator and on the device. Neither hanged for me — both quickly brought up a numerical approximation.

Can you reliably reproduce the hang?