Asked by kash
on 29 Mar 2013

I have a image

which consists of cartesian coordinates,plz tell how to implement these coordinates,which function must be used

Kindly help

Answer by Walter Roberson
on 29 Mar 2013

Use the symbolic toolbox function diff()

Walter Roberson
on 29 Mar 2013

8 is correct. f = x^3, and 2^3 is 8.

kash
on 3 Apr 2013

after differentation we get 3x^2,so the answer should be 12 rite

Walter Roberson
on 3 Apr 2013

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## 3 Comments

## Walter Roberson (view profile)

Direct link to this comment:https://www.mathworks.com/matlabcentral/answers/69058-how-to-implement-cartesian-coordinates#comment_139724

What is the context for that? It does not appear to be general Cartesian coordinates: it appears to be the expression in Cartesian coordinates of something like a wave function or a rotation.

## kash (view profile)

Direct link to this comment:https://www.mathworks.com/matlabcentral/answers/69058-how-to-implement-cartesian-coordinates#comment_139727

it is equation taken from

http://en.wikipedia.org/wiki/Navier%E2%80%93Stokes_equations

which is Navier–Stokes equations

## kash (view profile)

Direct link to this comment:https://www.mathworks.com/matlabcentral/answers/69058-how-to-implement-cartesian-coordinates#comment_139731

its for fluid flow

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