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# Volume of a 3D gaussian curve

I am looking to calculate the volume under a 3D
Gaussian distribution curve. I was wondering if anyone had some code that may help me. Thanks
Chris
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Posts: 49

## Re: Volume of a 3D gaussian curve

What is meant by the volume under a *curve*?

Are you talking about the volume bounded by the x-y plane and the *surface* z=
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## Re: Volume of a 3D gaussian curve

My bad.. I should have said "cone". Basically, I am asking if I have a volume of air in space and a gas is normally distributed in that 3 dimensional space ( aka cone shape, x,y and z), How do I calculate its volume using SAS. Does that make sense?
Contributor
Posts: 49

## Re: Volume of a 3D gaussian curve

Although in principle, the volume is infinite since there is always the probability, albeit infinitesimal, that a particle can be arbitrarily as far as desired. It is a gas, after all. I was still thrown by the cone idea.

Are you suggesting that if (X,Y,Z) are the position of a particular gas particle in space, that X,Y,Z are independent identically distributed normal?
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