solution of equations with constraints HP 50g
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01-22-2024, 01:55 AM
Post: #1
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solution of equations with constraints HP 50g
Greetings. I have a question. On the ti 89 calculator you could do, for example, 'solve(x^2 - 1 = 0)|x>0' to obtain the positive solution of an equation. Is it possible to do this with the hp48g or hp50g? How would it be done in agebraic mode and in rpn mode? I greatly appreciate your collaborations.
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01-22-2024, 11:43 AM
Post: #2
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RE: solution of equations with constraints HP 50g
Supply a guess x> 0 and ignore any negative x results.
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01-22-2024, 12:01 PM
Post: #3
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RE: solution of equations with constraints HP 50g | |||
01-22-2024, 12:32 PM
Post: #4
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RE: solution of equations with constraints HP 50g
You could use ASSUME (and UNASSUME).
Example with ASSUME: 'X>0' ASSUME MSGBOX: Replacing strict with large inequality 'X>0' is replaced by 'X>=0' 'X^3-3=0' SOLVEVX 'X=\v/3' 'X' UNASSUME SOLVEVX { 'X=-\v/3' 'X=\v/3' } That was done with the HP50G in RPN-mode. HTH Roman |
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01-22-2024, 01:18 PM
Post: #5
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RE: solution of equations with constraints HP 50g
(01-22-2024 12:32 PM)roem76 Wrote: You could use ASSUME (and UNASSUME). thanks, it worked perfect. |
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