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01-18-2012
01:01 AM

01-18-2012
01:01 AM

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

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01-18-2012
02:58 AM

01-18-2012
02:58 AM

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.

ThanksTyler

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

6 REPLIES 6

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01-18-2012
02:35 AM

01-18-2012
02:35 AM

Re: Help: error with integration - need setup assistance

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

Mike

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01-19-2012
01:58 AM

01-19-2012
01:58 AM

Re: Help: error with integration - need setup assistance

Mike,

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

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01-19-2012
02:11 AM

01-19-2012
02:11 AM

Re: Help: error with integration - need setup assistance

Cheers for the file Vladimir.

Mike

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01-19-2012
02:38 AM

01-19-2012
02:38 AM

Re: Help: error with integration - need setup assistance

No problem.

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01-18-2012
02:58 AM

01-18-2012
02:58 AM

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.

ThanksTyler

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

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01-18-2012
11:25 AM

01-18-2012
11:25 AM

Re: Help: error with integration - need setup assistance

Alan, thanks that did it.