No Real Roots

No Real Roots - No Real Roots - Messages

#1 Posted: 1/7/2021 6:15:41 PM
Tow Wai Lim

Tow Wai Lim

0 likes in 42 posts.

Group: User

Dear Expert User

I've tried all possible way but I still can't find a solution.

Please see attached calculaiton sheet.
Page1.sm (4 KiB) downloaded 26 time(s).
Capture.JPG


Using MathCAD this is solve very easily. I am not sure what is wrong here?


Can you guide me how to solve this problem.
#2 Posted: 1/7/2021 6:53:42 PM
overlord

overlord

552 likes in 1332 posts.

Group: Moderator

Wrote

Dear Expert User
I've tried all possible way but I still can't find a solution.
Using MathCAD this is solve very easily. I am not sure what is wrong here?
Can you guide me how to solve this problem.


Sometimes you have to give SMath a starting point while using roots() and FindRoot().
If you use roots() you also have to eliminate units or just simply multiply the unknown by its own unit.
FindRoot() can calculate with units, but again you have to give some starting point.

Regards

findroot.png
#3 Posted: 1/7/2021 7:00:22 PM
Tow Wai Lim

Tow Wai Lim

0 likes in 42 posts.

Group: User

How do you insert the ; in the roots function?
#4 Posted: 1/7/2021 7:10:22 PM
overlord

overlord

552 likes in 1332 posts.

Group: Moderator

Wrote

How do you insert the ; in the roots function?


This depends on your choice of Arguments Separator.
Look for Tools>Options>Argument Separator in menu.
If your option is comma then insert comma.
If your option is semicolon then insert semicolon.
I guess nobody use period for separator.

Some functions have additional argument support.
Actually number of argument could appear on placeholder if it is coded.
There is two argument roots() and three argument roots() as you can see.

Regards

placeholder.png
#5 Posted: 1/7/2021 7:15:47 PM
Tow Wai Lim

Tow Wai Lim

0 likes in 42 posts.

Group: User

Got it.. Thanks So much. All this little little things is so difficult to find. Really appreaciate to have your help on this.

#6 Posted: 1/7/2021 7:16:21 PM
Tow Wai Lim

Tow Wai Lim

0 likes in 42 posts.

Group: User

Capture2.JPG
#7 Posted: 1/7/2021 10:40:16 PM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

Group: User

Wrote

I've tried all possible way but I still can't find a solution.


... like this

SolveWisely.PNG
#8 Posted: 1/7/2021 10:46:15 PM
Jean Giraud

Jean Giraud

983 likes in 6866 posts.

Group: User

SolveWiselyErratum.PNG
  • New Posts New Posts
  • No New Posts No New Posts