can anyone help explain to me ?

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diadalina
diadalina el 17 de Nov. de 2019
Respondida: Walter Roberson el 17 de Nov. de 2019
I want to calculate the sum value of sn, with different manner, using matlab ,
its exact value is equal ,
the first way is:
the second way is :
if we talk about how the machine calculates, it is clear that we are not going to find the same result in relation to the exact value, but matlab gives me the same result, can anyone help me to find the error, this is my code matlab
%n=9,
%n=99,
n=999;
i=1:n;
format long
s1=1+sum(1./(i.^2+i));
s2=sum(1./(i.^2+i))+1;
s3=2+(1/(n+1));
s3 =
2.001000000000000
s1 =
1.498999999999999
s2 =
1.498999999999999

Respuesta aceptada

Walter Roberson
Walter Roberson el 17 de Nov. de 2019
s2=sum(fliplr(1./(i.^2+i)))+1;

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