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SavitriN1-Visitor
1-Visitor
September 20, 2018
Solved

I dont know why odesolve cant solve this

  • September 20, 2018
  • 2 replies
  • 3848 views

I'm trying to solve a simple differential equation dCO2L but it does not work with ode solver

I'm curios why.... Need help!

This topic has been closed for replies.
Best answer by LucMeekes

Further, your differential equation is simple enough to solve. Which should save you the hassle of (trying to work with) ranges.

LM_20180920_DiffEq.png

 

Don't mind the red stuff, its just that the numeric processor doesn't like undefined variables.

LM_20180920_DiffEq1.png

 

Success!
Luc

2 replies

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LucMeekes23-Emerald IV
23-Emerald IV
September 20, 2018

Most probably because you've used a range in the Guess values.

Does it work if you delete from the Guess values:

 L:0,1..LEND

?

Additionally: you HAVE to provide one initial condition for your C02L function. E.g. C02L(0)=0...

 

Success!
Luc

S
SavitriN1-VisitorAuthor
1-Visitor
September 20, 2018

Hey there!

 

I tried, and now it gave error commen like "There are too few equations"....

I dont understand

L
LucMeekes23-Emerald IVAnswer
23-Emerald IV
September 20, 2018

Further, your differential equation is simple enough to solve. Which should save you the hassle of (trying to work with) ranges.

LM_20180920_DiffEq.png

 

Don't mind the red stuff, its just that the numeric processor doesn't like undefined variables.

LM_20180920_DiffEq1.png

 

Success!
Luc

S
SavitriN1-VisitorAuthor
1-Visitor
September 20, 2018

Yes, exactly! That's why i'm so confused why such a easy one can't give me result.

Thank you very much.

Wish you all the best!

 

S
SavitriN1-VisitorAuthor
1-Visitor
September 21, 2018

Yeah, i tried as well in Matchad 15 and still it does not work!

You can look from the file i attached

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