HP50g or other: U. of Houston calc exams
08-09-2015, 04:49 PM (This post was last modified: 08-09-2015 05:35 PM by Hlib.)
Post: #15
 Hlib Member Posts: 175 Joined: Jan 2015
RE: HP50g or other: U. of Houston calc exams
(08-05-2015 04:58 AM)Peter Murphy Wrote:  .........
I'd be interested in seeing solutions to 2015 problem 23, and to any other problems whose solutions you think might help users of the 50g get better at using it.

19. Give the value of "a" for which the system below has a solution (Calculator Exam – 2015)
2x -3y = 6 - 7a
-3x + 5y = 7+ 2a
7x +11y = 4 - 6a

Solution was based on the Kronecker-Capelli theorem and its consequences.

Code:
 flags: -2,-3,-55,-105 clear -117 set 2 -3 -3 5 7 11 {3 2} →ARRY DUP RANK SWAP [′6-7*a′ ′7+2*a′ ′4-6*a′] 3 COL+ DET = ′a′ ZEROS a=707/384

If I wasn't wrong.
Edit 1: sorry, this is incorrect. I will think
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 Messages In This Thread HP50g or other: U. of Houston calc exams - Peter Murphy - 08-05-2015, 04:58 AM RE: HP50g or other: U. of Houston calc exams - Brad Barton - 08-05-2015, 06:40 PM RE: HP50g or other: U. of Houston calc exams - Joe Horn - 08-06-2015, 09:31 AM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-05-2015, 07:06 PM RE: HP50g or other: U. of Houston calc exams - Gilles - 08-05-2015, 07:13 PM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-05-2015, 11:34 PM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-06-2015, 03:33 PM RE: HP50g or other: U. of Houston calc exams - Jlouis - 08-06-2015, 09:31 PM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-08-2015, 06:00 PM RE: HP50g or other: U. of Houston calc exams - DavidM - 08-09-2015, 12:46 AM RE: HP50g or other: U. of Houston calc exams - Hlib - 08-08-2015, 10:19 PM RE: HP50g or other: U. of Houston calc exams - Gilles - 08-08-2015, 10:52 PM RE: HP50g or other: U. of Houston calc exams - Didier Lachieze - 08-09-2015, 01:10 AM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-09-2015, 02:18 AM RE: HP50g or other: U. of Houston calc exams - Hlib - 08-09-2015 04:49 PM RE: HP50g or other: U. of Houston calc exams - CR Haeger - 08-09-2015, 07:14 PM RE: HP50g or other: U. of Houston calc exams - Gilles - 08-09-2015, 07:46 PM RE: HP50g or other: U. of Houston calc exams - CR Haeger - 08-09-2015, 08:18 PM RE: HP50g or other: U. of Houston calc exams - Hlib - 08-09-2015, 10:28 PM RE: HP50g or other: U. of Houston calc exams - CR Haeger - 08-10-2015, 12:07 AM RE: HP50g or other: U. of Houston calc exams - Hlib - 08-10-2015, 02:12 PM RE: HP50g or other: U. of Houston calc exams - CR Haeger - 08-10-2015, 03:42 PM RE: HP50g or other: U. of Houston calc exams - Didier Lachieze - 08-10-2015, 03:50 PM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-12-2015, 04:22 PM RE: HP50g or other: U. of Houston calc exams - Gilles - 08-12-2015, 09:29 PM RE: HP50g or other: U. of Houston calc exams - CR Haeger - 08-12-2015, 11:21 PM RE: HP50g or other: U. of Houston calc exams - Hlib - 08-13-2015, 06:35 PM RE: HP50g or other: U. of Houston calc exams - Thomas Klemm - 08-12-2015, 05:26 PM RE: HP50g or other: U. of Houston calc exams - Thomas Klemm - 08-12-2015, 10:53 PM RE: HP50g or other: U. of Houston calc exams - Peter Murphy - 08-13-2015, 01:10 AM RE: HP50g or other: U. of Houston calc exams - Gerson W. Barbosa - 08-13-2015, 08:26 PM RE: HP50g or other: U. of Houston calc exams - CR Haeger - 08-13-2015, 11:14 PM RE: HP50g or other: U. of Houston calc exams - pier4r - 05-03-2017, 10:19 PM

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