This variable must be a function but has the form unitless

[Werner_E]

Don't post just pictures - attach you worksheets.

You are using the wrong syntax for odesolve - look it up in the help.

And please close your other open threads here in the forum.

[JPark6]

can you explain more detail?

[-MFra-]

Hi,

You should write k multiplied by....and not k(