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1210 Views, 12 Replies

02-23-2004 09:44 AM

Where can I find details of the correct syntax for Math & Trig functions for equations in parameters?

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02-23-2004 09:49 AM in reply to:
StuartMoore

In the Help file, search for Edit Box Reference.
Mike
"StuartMoore" wrote in message
news:13104293.1077558281179.JavaMail.jive@jiveforum1.autodesk.com...
> Where can I find details of the correct syntax for Math & Trig functions
for equations in parameters?

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02-23-2004 10:03 AM in reply to:
StuartMoore

The search found nothing of use. Can you be more specific?

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02-23-2004 10:09 AM in reply to:
StuartMoore

It should have turned up lots of things.
Try this instead, I think it might narrow the hits down
algebraic operators
--
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"StuartMoore" wrote in message
news:31268272.1077559464225.JavaMail.jive@jiveforum1.autodesk.com...
> The search found nothing of use. Can you be more specific?

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02-23-2004 11:43 AM in reply to:
StuartMoore

Search for "cos" in the Help, and Inventor will list the following topics:
Edit box parsing example table
Edit box reference
HTH,
Glenn

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02-23-2004 11:38 PM in reply to:
StuartMoore

http://www.mossdesigns.com/inventor-tips.htm
"Glenn Chun (Autodesk)" wrote in message
news:403a57f1$1_3@newsprd01...
> Search for "cos" in the Help, and Inventor will list the following topics:
>
> Edit box parsing example table
> Edit box reference
>
> HTH,
> Glenn
>
>

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02-23-2004 11:38 PM in reply to:
StuartMoore

http://www.mossdesigns.com/inventor-tips.htm
"StuartMoore" wrote in message
news:13104293.1077558281179.JavaMail.jive@jiveforum1.autodesk.com...
> Where can I find details of the correct syntax for Math & Trig functions
for equations in parameters?

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02-24-2004 03:55 AM in reply to:
StuartMoore

Thanks for your help but I still cannot get IV to do what I want.

I am trying to create a sphere using the volume to drive the radius. I make a user parameter called SpereVolume and input the volume I want. I am not sure of the units to use here since IV only allows litres or gallons. However, it shouldn't matter if the number is unitless since it is only being used to calculate a radius which has mm units. The equation I am using to calculate the radius is:

=((3*ShereVolume)/(4*pi))^(1/3)

IV's response to this is "Unable to parse equation".

Any ideas would be most welcome.

I am trying to create a sphere using the volume to drive the radius. I make a user parameter called SpereVolume and input the volume I want. I am not sure of the units to use here since IV only allows litres or gallons. However, it shouldn't matter if the number is unitless since it is only being used to calculate a radius which has mm units. The equation I am using to calculate the radius is:

=((3*ShereVolume)/(4*pi))^(1/3)

IV's response to this is "Unable to parse equation".

Any ideas would be most welcome.

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02-24-2004 04:18 AM in reply to:
StuartMoore

A further observation: if I replace pi with the numerical value IV accepts the equation but the answer it gives is exaxtly 10x too big and the equation stays red in the box.

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02-24-2004 04:59 AM in reply to:
StuartMoore

OK, I worked it out. Volume must be entered as litres and pi should be PI.

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