I need help

Salam
Im a new member from jordan, I study Mechatronics in south africa, but im srugeling with the matlabV][FONT=Times New Roman]f [/font].
we study from sheet or book
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MATLAB Primer

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John F. Patzer II
i can`t solve worshope 7exr:2,3,4
my Email:
ehna85@yahoo.com[/right]

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i cant understand what you want???
i am from jordan also

please write the ex2.3.4
to see it