# Undefined function or method 'mtimes' for input arguments of type 'cell' ERROR

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Hamid on 14 Dec 2014
Commented: Hamid on 14 Dec 2014
Hi everyone,
Ed = cell(1, lc); lc>1
--------------------------------------------
function [es]=bar3s(ex,ey,ez,ep,ed)
b=[ ex(2)-ex(1); ey(2)-ey(1); ez(2)-ez(1) ];
L=sqrt(b'*b);
n=b'/L; G=[ n zeros(size(n)); zeros(size(n)) n ];
E=ep(1); A=ep(2); Kle=E*A/L*[ 1 -1; 1 1];
N=E*A/L*[-1 1]*G*ed';
es=N;
Error in ==> N=E*A/L*[-1 1]*G*ed';

Azzi Abdelmalek on 14 Dec 2014
Use
N=E*A/L*[-1 1]*G*[ed{:}]'
Hamid on 14 Dec 2014
% es=bar3s(ex,ey,ez,ep,ed)
%-------------------------------------------------------------
% PURPOSE
% Compute normal force in three dimensional bar element.
%
% INPUT: ex = [x1 x2]
% ey = [y1 y2] element node coordinates
% ez = [z1 z2]
%
% ep = [E A] element properties
% E : Young's modulus
% A : Cross section area
%
% ed : [u1 ... u6] element displacements
%
% OUTPUT: es = [N] normal force

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