how to implement cartesian coordinates

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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

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Answers (1)

Walter Roberson
Walter Roberson on 29 Mar 2013
Use the symbolic toolbox function diff()
kash on 3 Apr 2013
after differentation we get 3x^2,so the answer should be 12 rite
Walter Roberson
Walter Roberson on 3 Apr 2013
No, the answer for a=subs(f,[x],2) should be 8. Calculating diff(f) makes no difference to the value you find by substituting something into f.

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