Prime oddity and 39gii

[Mark Hardman]

(05-16-2014 07:58 PM)lrdheat Wrote:  And more...when entering as (2*x)^(1/3), it produces exactly 6 in home,CAS, and plot. Not intuitive or consistent on Prime, even less so on 39gii.

Neat machines, still needs polishing!

This was discussed many months ago in the old forum:

[HP Prime] "Error while checking exact value with approximate value, returning both!"

parisse acknowledges this as a bug at the end of the thread:

"There is an error in the antiderivative of NTHROOT/surd for linear argument explaining the factor 2 errot, I'll fix that. In the meantime use fractional powers..."

Hopefully HP will provide a new firmware revision for the Prime soon. For the 39gii, I would not hold my breath.

Mark Hardman