Matlab code for function y=newton_modif(g,x0​,o)

NEWTON_MODIF tries to to find the root of an equation g(x)=0
by modified Newton-Raphson method
input:
g must be the @-syntax function or symbolic expression or char
x0 guess value
g must by ready for array input
Example g='sin(x)';,x0=2;y=newton_modif(g,x0,0) or
g=@(x)sin(x)+x.*cos(x); x0=1; y=newton_modif(g,x0,1) or
syms x; g=sin(x); y=newton_modif(g,x0,1)