Re: Integral problems

[Markus Mützel]

Am 15. April 2020 um 12:32 Uhr schrieb "이태훈":
> Hi 
> I want to intragate the equation dx/dt=-xD + ux (x=biomass D=dillution rate 
> u=growthrate ),and u is replaced by umax*I/(I+km).
> 
> But every time I try, I get an error. I tried the “int" and the quad but 
> nothing works. 
> The image of the code and the error are attached. 
> Please tell me what is wrong. It would mean a lot to me.
> (p.s I use octave 4.4.1 app and I don’t have any packages installed due to 
> program setting issues)

Maybe you want to read section 11 of the manual (Functions and Script) on how 
to define a function in Octave.
In general, it would be more helpful to attach a file with the code you are 
executing (or paste it in the mail as text) instead of screenshots.

HTH,
Markus