# neural network programming error

clear all;clc

`a=rand(1,1000); b=rand(1,1000); c=rand(1,1000); y=a*2+b*3+c*5 I=[a; b; c;] T=y net = newff([0 1;0 1 ;0 1],[10 1]); net=train(net,I,T); J1=sim(net,I); Op=sim(net,[1 1 1]');`

As i am testing system with inputs [1 1 1] then the output must be neat to 10, but it gives 1. what is wrong with this code?

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`clear all; clc rng('default')    % Initialized the RNG a = rand(1,1000); b = rand(1,1000); c = rand(1,1000); y = a*2+b*3+c*5;  % Added semicolon I = [a; b; c;];   % Added semicolon T = y;            % Added semicolon net = newff([0 1;0 1 ;0 1],[10 1]); net=train(net,I,T); J1=sim(net,I); MSE = mse(J1-T) Op=sim(net,[1 1 1]') %  Warning: NEWFF used in an obsolete% way. % > In obs_use at 18%   In newff>create_network at 127%   In newff at 102%   In Untitledgh at 9 %   See help for NEWFF to update calls to %   the   new argument list. % MSE =   19.6749 % Op =     1 net = newff( I ,T ,10 );  % Current version net=train(net,I,T); J1=sim(net,I); MSE = mse(J1-T)        Op=sim(net,[1 1 1]')    % MSE =   4.4650e-009 % Op  =     9.9969`

To be sure the obsolete version contains a bug,

https://www.matlabsolutions.com/resources/neural-network-programming-error.php

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## Technical Source

Simple! That is me, a simple person. I am passionate about knowledge and reading. That’s why I have decided to write and share a bit of my life and thoughts to.