function [A] = dot2(numsteps,start)
	%
	%
	% 	Inputs:
	%		numsteps = number of steps that should be calculated
	%		start = [2x1]-vector which represents the x- and y-coordinates of the startposition
	%	Outputs:
	%		A = [numstepsx2]-matrix with the x- and y-coordinates of the point at each step
	%

	 if (nargin() == 0)
                error('U moet minstens 1 inputvariabele invoeren')
        elseif nargin() == 1
                disp('Geen startpositie ingevoerd: er wordt een willekeurige startpositie gekozen in het vierkant [0,1] x [0,1].')
                start = [rand,rand]
        end


	d = rand
	A = zeros(numsteps,2)

	n = rand-0.5
		if n<0
		A(1,:) = [start(1)+ sign(rand-0.5)* d, start(2)]
		end

		if n>0
		A(1,:) = [start(1), start(2)+ sign(rand-0.5)* d]
		end

	for i=2:numsteps
	n = rand-0.5
		if n<0
		A(i,:) = [A(i-1,1) + sign(rand-0.5)* d, A(i-1,2)]
		end

		if n>0
		A(i,:) = [A(i-1,1), A(i-1,2) + sign(rand-0.5)* d]
		end
	end