Hi,
Hope this could help you
% Load the V0 variable
load('V0.mat'); % assuming the file is in the current directory
% Calculate Vij with minor and major extremes
Vi = 0.9 * V0; % minor extreme
Vj = 1.1 * V0; % major extreme
Vij = [Vi; Vj];
% Calculate the condition
cond = abs((Vij - V0) ./ V0) < 0.15;
% Display the result
disp(cond);