Solving for Undefined variables, no real roots error - Solving for Undefined variables, no real roots error - Messages
#1 Posted: 4/25/2022 4:13:57 AM
Hi all,
I am trying to solve for an unknown variable on Smath, a very straight forward operation on my calculator, however I'm trying to figure out how to display it on an Smath work sheet. Thanks in advance for your help. I am currently just using the solve function, inputting the function with the undefined parameter, A.st, and using tthe booleen operator to allow for calculation and it is saying no real roots...
I am trying to solve for an unknown variable on Smath, a very straight forward operation on my calculator, however I'm trying to figure out how to display it on an Smath work sheet. Thanks in advance for your help. I am currently just using the solve function, inputting the function with the undefined parameter, A.st, and using tthe booleen operator to allow for calculation and it is saying no real roots...
#2 Posted: 4/25/2022 8:15:43 AM
#3 Posted: 4/25/2022 8:22:41 AM
This works too: al_nleqsolve(guess,f)
Russia ☭ forever, Viacheslav N. Mezentsev
#4 Posted: 4/25/2022 9:11:57 AM
Thankyou for your reply, if possible could you explain what you mean, i will upload a smath file of the sheet i am working on, if you could have a look, it would be greatly appreciatd!
#5 Posted: 4/25/2022 9:13:04 AM
#6 Posted: 4/25/2022 10:17:41 AM
Here is your file solved with various solvers.
I also corrected your formula depending on your first question.
d.eff is multiplied in your file, subtraction occurs at first post.
solve() can solve between -20,20 range as default.
If your result shall be out of this bound, you will need to specify it.
Or you can change your default roots range from Tools>Options>Calculations.
FindRoot() can also solve equations with units as maple-solve.
Just give it a boolean guess to start calculation with.
Be careful, it will assign your unknown with result.
Regards
ASSINGMENT_1_result.sm
I also corrected your formula depending on your first question.
d.eff is multiplied in your file, subtraction occurs at first post.
solve() can solve between -20,20 range as default.
If your result shall be out of this bound, you will need to specify it.
Or you can change your default roots range from Tools>Options>Calculations.
FindRoot() can also solve equations with units as maple-solve.
Just give it a boolean guess to start calculation with.
Be careful, it will assign your unknown with result.
Regards
ASSINGMENT_1_result.sm
1 users liked this post
NDTM Amarasekera 4/25/2022 2:18:00 PM
#7 Posted: 4/25/2022 2:19:15 PM
You can also solve your problem with quadratic formula.
Regards
And here is your one-line algebraic solution.
It is derived from quadratic formula.
Numeric solvers not involved.
Regards
And here is your one-line algebraic solution.
It is derived from quadratic formula.
Numeric solvers not involved.
#8 Posted: 4/25/2022 10:23:29 PM
Thankyou all so much,
very mush appreciated!
very mush appreciated!
#9 Posted: 4/26/2022 3:26:53 PM
As given, the duplicate solution is unique wrt the given project variables.
By ranging wisely, you can recursively solve wrt any of the variables involved.
From there, enrich the project document by adding plot(s).
Cheers ... Jean.
By ranging wisely, you can recursively solve wrt any of the variables involved.
From there, enrich the project document by adding plot(s).
Cheers ... Jean.
-
New Posts
-
No New Posts