Improper integral

[John Colvin]

(06-12-2014 07:01 PM)alexzkter Wrote:  

(06-12-2014 06:27 PM)John Colvin Wrote:  I was able to get the correct result on the Prime in Home by using fractional power-
1/(x-1)^(1/5).

I'm not an experienced user, but in Home, regardless off the CAS settings I get:
18.75:


On the virtual calculator HOWEVER, in Home too, I get:


On CAS, if exact and complex mode settings are not selected I get on both calculators 18.75 as well.

So either the physical and virtual calculators are not identically working, or I did something wrong, or the Prime I paid for is smarter than all of yours. Joking...

I hope I was helpful somehow.

P.S. Revision A, latest firmware at present, standard digit grouping, Spanish language on physical calculator.

This is what I don't like about the Prime. Inconsistencies even between calculators.
If I express the integrand using the radical sign instead of the fractional power, I
get the approximate answer 18.74795... instead of the correct answer of 18.75.
Could be a settings issue-I used textbook mode in Home which I think is what you used.