I writing a program on MATLAB to implement Newton Raphson method

[RK10]

Did anyone write a program before for Newton Raphson method on MATLAB.
I need to try the program to solve 2 equations:
cox=x^3
and x^4-0.5(x^3)+3(x^2)-x+3=0
Please Help me in this manner ASAP.
AND THANK YOU

 

[vivek.iitd]

http://www.mathworks.com/matlabcentral/fileexchange/26875-Newton-raphsons-method-of-rootfinding

 

[Pythagorean]

I thought fsolve used the Newton method.