With what code can I make Matlab do this operation automatically

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 Kommentare

abuzer
abuzer am 23 Jan. 2018
Bearbeitet: abuzer am 23 Jan. 2018
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];
% your function
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))
eks = @(x) sum(exp(x));
E1 = eks(x1)
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
Excellent!!! You are a genius. Thank you

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 Akzeptierte Antwort

Star Strider
Star Strider am 23 Jan. 2018
Bearbeitet: Star Strider am 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 Kommentare

Excellent!!! You are a genius. Thank you
As always, my pleasure!

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