integral in solve - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: integral in solve (/thread-3701.html) integral in solve - lrdheat - 04-23-2015 07:32 PM I need a refresher for this solve question on Prime (asked in not quite HP for this problem on my WP 34S). I want to solve (integral x^2 from 0 to x)=10. My CASIO 9860gii solve app is straight forward and quickly comes up with ~3.107. I know that this problem is easily accomplished on the Prime, but I can't remember how. RE: integral in solve - DrD - 04-23-2015 08:09 PM Something like: solve((int(x^2,x,0,x)) = 10,x); // Exact checked in CAS settings -or- solve((∫(x^2,x,0,x)) = 10,x); Seems to work ok. RE: integral in solve - lrdheat - 04-23-2015 08:33 PM It does work, and is easy! How can I do this on the solve app? RE: integral in solve - lrdheat - 04-26-2015 08:43 PM DrD...your example worked for the problem above, but doesn't work for solving (integral x^3-2*x^2+sqrt(13*x)dx from 0 to x)=10 (answer is ~2.61) How do I do this in CAS, and are things different in home? RE: integral in solve - parisse - 04-27-2015 01:11 PM solve(int(x^3-2*x^2+sqrt(13*x),x,0,t)=10,t) Perhaps you had a problem because you are using the same x for two different meanings.