# MATLAB: Using the Probability to change values of variables

## MATLAB: Using the Probability to change values of variables

fsolvevariables

Hello I have 10 known variables (x1=5,x2=6,…..,x10=11). I want to force x1 to be zero at the first step. Then force x2 to be zero at the second step while x1=5. then force x3 to be zero at the third step while x1=5,x2=6. After the 10th step I will start to force two variables to be zero. for example,at 11th step x1=x2=0, and at 12th step x1=x3=0 while x2=6…etc. I will use the process until all of them will be zero. please, how to do that by matlab? thanks

``X = 1:5; % define the values here%% Create binary matrix:N = numel(X);M = [1;0];for k = 1:N-1    S = numel(M(:,1));    M = [M,ones(S,1);M,zeros(S,1)];end% Sort binary matrix into the required order:[~,idx] = sort(sum(M,2),'descend');% Multiply binary with X to get output rows:out = bsxfun(@times,X,M(idx,:))``
``out = 1   2   3   4   5 0   2   3   4   5 1   0   3   4   5 1   2   0   4   5 1   2   3   0   5 1   2   3   4   0 0   0   3   4   5 0   2   0   4   5 1   0   0   4   5 0   2   3   0   5 1   0   3   0   5 1   2   0   0   5 0   2   3   4   0 1   0   3   4   0 1   2   0   4   0 1   2   3   0   0 0   0   0   4   5 0   0   3   0   5 0   2   0   0   5 1   0   0   0   5 0   0   3   4   0 0   2   0   4   0 1   0   0   4   0 0   2   3   0   0 1   0   3   0   0 1   2   0   0   0 0   0   0   0   5 0   0   0   4   0 0   0   3   0   0 0   2   0   0   0 1   0   0   0   0 0   0   0   0   0``