Given/Find function is telling me there isn't a solution when there is...

Forum|Forum|13 years ago
April 28, 2013
4 replies
2544 views

Hi,

So, I'm trying to use the given/find function to find the temperature of a substance at a given pressure. I have my equation for pressure as a function of temperature. I can type values in manually to get really close to what I'm looking for, but MathCAD keeps telling me there is no solution. The area of question is highlighted in blue.

Thanks,

Sam

1_EMCH794_HW06-xmcd.zip

Other

Best answer by Werner_E

Strange - I don't understand why I get a slution (a complex one).

The cause for your problem is:

.) if you use symbolic evaluation you must not provide a guess value, the variable searched for has to be without value

.) if you use numeric evaluation it works as you had it set up

Werner_E

Answer

25-Diamond I

Strange - I don't understand why I get a slution (a complex one).

The cause for your problem is:

.) if you use symbolic evaluation you must not provide a guess value, the variable searched for has to be without value

.) if you use numeric evaluation it works as you had it set up

P

ptc-4168940

Author

1-Visitor

Thanks. I know I typed that in at some point and it wasn't working for me, but I guess I didn't have something else set up properly. I feel like I'm finding every way for the program not to work.

Werner_E

25-Diamond I

I feel like I'm finding every way for the program not to work.

If thats true, you still will have a long way to go 😉

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