Help: error with integration - need setup assistance

[ptc-4156096]

I'm trying to reproduce a result over a range of values for specific volume. I was able to run through the equation and I got a result as expected on page 1 with a defined specific volume.

I then tried to reproduce and graph the results if I varried the specific volume over a given range (page 2), but ran into a issue. I know the integral is producing the error, but don't know how to properly set up the integral in MathCad over a range. Any help on setting up the problem differently or how to work around this issue would be appreciate.

Thanks

Tyler

[MikeArmstrong]

Have you got the worksheet in Mathcad 15? I'm having issues with my Prime 1.0 license at the moment.

Mike

[VladimirN]

Mike,

Here's a PDF version of this document (see attachment).

[MikeArmstrong]

Cheers for the file Vladimir.

Mike

[VladimirN]

No problem.

[AlanStevens · Accepted solution]

Tyler Donnell wrote:

,,, I know the integral is producing the error, but don't know how to properly set up the integral in MathCad over a range. Any help on setting up the problem differently or how to work around this issue would be appreciate.

Thanks

Tyler

Since you are integrating with respect to eta you should change all instances of 'eta(v)' into just 'eta' within the integral (but keep it as 'eta(v)' in the upper limit of the integration).

Alan

[ptc-4156096]

Alan, thanks that did it.