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05-22-2013
03:32 PM

05-22-2013
03:32 PM

This value has the form [] Length, but must have the form [] Unitless

I got the error message like this in discussion title, when i try to solve simply differential equation.

Check the attached file.

5 REPLIES 5

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05-22-2013
03:52 PM

05-22-2013
03:52 PM

Re: This value has the form [] Length, but must have the form [] Unitless

Try removing all the units.

Mike

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05-22-2013
04:00 PM

05-22-2013
04:00 PM

Re: This value has the form [] Length, but must have the form [] Unitless

I have tried it before, and its working, but i would like to solve this equatation with units.

Is there any posibility to do this ?

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05-22-2013
04:16 PM

05-22-2013
04:16 PM

Re: This value has the form [] Length, but must have the form [] Unitless

Not really satisfactory, but maybe like in the attached file

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05-22-2013
05:24 PM

05-22-2013
05:24 PM

Re: This value has the form [] Length, but must have the form [] Unitless

Thanks alot. I have one more question, how to find minimum of function, without calculating derivative of a function ? Is there any built-in mathcad function to find it ?

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05-22-2013
05:53 PM

05-22-2013
05:53 PM

Re: This value has the form [] Length, but must have the form [] Unitless

You could use minimize() or you could make vectors with x and y values and use min() and match() or lookup().

See attached