newton.m        : The matlab code for newton method
fixedpoint.m    : The matlab code for Fixed point method
myfixpointfun1.m: The matlab code for the function x=exp(-x) used in part 2.a
myfixpointfun2.m: The matlab code for the function x=- ln x used in part 2.b
mynewtonfun.m   : The matlab code for the function y=exp(-x)-x used in part 4
mynewtonfun_pre.m : The matlab code for the function y=-exp(-x)-1 used in part 4
                    which is the derivative of y=exp(-x)-x