How do I output to the command window where the sum of the bars on the graph equal zero along the x axis

clc;

clear;

close all;

A= -15000;

A(2:6)= 3200;

A(7:9)= [2133.333, 1066.667, 1000];

n=length(A);

for i =1:n

x(i) = i-1;

end

bar(x,A,0.25)

PW= 0;

int=[1.06 1.08 1.1];

for j= 1:length(int)

PW=0;

for t= 1:n

PW=PW+A(t)*int(j)^(-x(t));

PWA(j,t)=PW;

end

end

figure(1)

hold on

plot(x,PWA,'-x','LineWidth',2)

legend('CF diagram','1.06','1.08','1.1','Location','southeast')

Answer 1

[Star Strider]

If fyou are referring to ‘PWA’, try this (after your plot call):

for k = 1:size(PWA,1)
    PWA0(k) = interp1(PWA(k,:), x, 0, 'linear', 'extrap');
    fprintf('PWA = 0 at x = %4.2f\n', PWA0(k))
end

When I ran it, the result was:

PWA = 0 at x = 6.02
PWA = 0 at x = 7.47
PWA = 0 at x = 9.40

Experiment to get the result you want.