Is there a way for the solve app to use exact figures?
|
10-22-2020, 04:36 PM
Post: #3
|
|||
|
|||
RE: Is there a way for the solve app to use exact figures?
(10-22-2020 04:11 AM)Stevetuc Wrote: exact(proot([1,-1,6^2+31^2])) 2 issues: 1). you missed the +6 for the constant term. 2). approximate solutions, then apply exact, does not give exact solutions. (some cases do work, if exact solutions are "simple" rational; but not in general) BTW, exact is a bad name. It really meant float2rational (conversion likely *not* exact) I don't have HP Prime, but in XCas, you can use solve (with complex ON) XCas> eqn := subst(a^2+b^2+c^2+6-a, [b,c]=[6,31]) → a^2-a+1003 XCas> solve(eqn=0, a) → \([{1+i\sqrt{4011} \over 2}, {1-i\sqrt{4011} \over 2}]\) |
|||
« Next Oldest | Next Newest »
|
Messages In This Thread |
Is there a way for the solve app to use exact figures? - Lord_Spooglypuff - 10-22-2020, 03:03 AM
RE: Is there a way for the solve app to use exact figures? - Stevetuc - 10-22-2020, 04:11 AM
RE: Is there a way for the solve app to use exact figures? - Albert Chan - 10-22-2020 04:36 PM
RE: Is there a way for the solve app to use exact figures? - Stevetuc - 10-22-2020, 05:47 PM
RE: Is there a way for the solve app to use exact figures? - cdmackay - 10-25-2020, 09:27 PM
RE: Is there a way for the solve app to use exact figures? - Albert Chan - 10-22-2020, 07:19 PM
RE: Is there a way for the solve app to use exact figures? - pinkman - 10-22-2020, 07:43 PM
|
User(s) browsing this thread: 1 Guest(s)