MATLAB: Array indices must be positive integers or logical values.

array

Here I am having the most asked question on Matwork Forums and still unable to solve my problem.
The code I have is listed below, but since I am a newbie. I should describe what I am trying to achieve here;
with line 59-66 i tried to pull out the variables from table,
than with the for command i am planning to use these variables in line 59 to 66 in a basic formulations such as multiplication so on.
I achieved the same procedure in the first " For " loop but I don't know what I am doing wrong now.
( Sorry for the Turkish explanations with green texts)
echo off all
clc
nodeX = [0,5,9.17,12,0,5,9.17,12,0,5,8,9.17,12]; % noktalarin x koordinatlari
nodeY = [8,8,8,8,4,4,5.5,5.5,0,0,0,2.83,4]; % noktalarin y koordinatlari
elemX = [5,6,6,7,7,7,5,9,10,11,6,7,7]; % i icin olusan ucgenlerin global nokta karsiliklari
elemY = [1,1,2,2,3,4,6,6,6,6,7,12,8]; % j icin
elemZ = [6,2,7,3,4,8,9,10,11,12,12,13,13]; % k icin
varTable = [];
fprintf("e xi\txj\txk\tyi\tyj\tyk\tck\tci\tcj\tbi\tbj\tbk\tA\n"); % tablo basligini formatla
for i = 1:length(elemX)
    
    % sirasiyla elemanlari okutuyoruz 
    currElemX = elemX(i);
    currElemY = elemY(i);
    currElemZ = elemZ(i);
    
    % i ye karsilik gelen global noktalarin koordinat karsiliklari
    % bulunuyor
    xi = nodeX(elemX(i));
    xj = nodeX(elemY(i));
    xk = nodeX(elemZ(i));
    
    yi = nodeY(elemX(i));
    yj = nodeY(elemY(i));
    yk = nodeY(elemZ(i));
    
    % gerekli hesaplama yapiliyor
    ck = xj - xi;
    ci = xk - xj;
    cj = xi - xk;
    
    bi = yj - yk;
    bj = yk - yi;
    bk = yi - yj;
  
    % alan hesabi
    A = abs(0.5 * (xi * yj + xj * yk + xk * yi - xi * yk - xj * yi - xk * yj));
    
    %dongunun disinda kullanmak icin bulunan degerleri sakla
    varTable = [varTable ; ck,ci,cj,bi,bj,bk,A];
    
    % ekrana uygun formatla yazdiriliyor
    fprintf("%d %.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.2f\t%.4f\t\n",i,xi,xj,xk,yi,yj,yk,ck,ci,cj,bi,bj,bk,A);
    
end
Kcal= array2table(varTable, 'Variablenames',{'ck','ci','cj','bi','bj','bk','A'}) %K 3x3 matris hesabi icin tablo
%tablodaki degerleri disari cekiyorum sutunlari ayri olarak
%A='Tablename'.'variablename' komutu ile
%n sembolu sondaki sadece karisiklik onlemek amacli
cin=Kcal.ci;
cjn=Kcal.cj;
ckn=Kcal.ck;
bin=Kcal.bi;
bjn=Kcal.bj;
bkn=Kcal.bk;
An=Kcal.A;
for i=1:height(Kcal)
    
    currcin=cin(i);
    currcjn=cjn(i);
    currckn=ckn(i);
    
    currbin=bin(i);
    currbjn=bjn(i);
    currbkn=bkn(i);
    
    currAn=An(i);
   
    bin=bin(bin(i));
    bjn=bjn(bjn(i));
    
    K11= bin-bjn
    
    
   
    
    
end

Best Answer

Problem is solved with the code that I've commented to Star Strider.
Matlab is so far has the very helpful community thanks for all the efford
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