With what code can I make Matlab do this operation automatically

2 vues (au cours des 30 derniers jours)
Ricardo Gutierrez
Ricardo Gutierrez le 23 Jan 2018
Commenté : Star Strider le 24 Jan 2018
Good morning.
I hope you can help me.
How can I enter the elements of a vectror automatically in the formula, to obtain the value of E and then introduce the elements of the next vector. Everything automatically.
____________________________
clc; clear; close all
x1=[1 2 3 4 5 6 7 8 9 10]
x2=[2 4 6 8 1 3 5 2 3 1]
x3=[2 1 4 2 6 4 8 3 8 3]
E=exp(x1(1))+exp(x1(2))+exp(x1(3))+exp(x1(4))+exp(x1(5))+exp(x1(6))+exp(x1(7))+exp(x1(8))+exp(x1(9))+exp(x1(10))
__________________________________________________________________________________________________
Regards
  3 commentaires
Ricardo Gutierrez
Ricardo Gutierrez le 23 Jan 2018
First thanks for answering. I have E1 is evaluated with the vector A0, now it is necessary to evaluate with the vector A1 and A2. Evaluate A0, A1 and A2 automatically. Thanks and regards
Ricardo Gutierrez
Ricardo Gutierrez le 24 Jan 2018
Excellent!!! You are a genius. Thank you

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Star Strider
Star Strider le 23 Jan 2018
Modifié(e) : Star Strider le 23 Jan 2018
Try this:
E = sum(exp(x1))
E =
34.8438
You can also create an anonymous function to do this:
Efcn = @(x) sum(exp(x));
E = Efcn(x1)
and use it as you would any other function.
EDIT (23 Jan 2018 21:38 UCT)
To do all of them at once:
x1=[1 2 3 4 5 6 7 8 9 10];
x2=[2 4 6 8 1 3 5 2 3 1];
x3=[2 1 4 2 6 4 8 3 8 3];
E = sum(arrayfun(@exp, [x1; x2; x3]), 2)
E =
34.8438
3.6478
6.5322
  2 commentaires
Ricardo Gutierrez
Ricardo Gutierrez le 24 Jan 2018
Excellent!!! You are a genius. Thank you
Star Strider
Star Strider le 24 Jan 2018
As always, my pleasure!

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