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Error Using fprintf Invalid file identifier. Use fopen to generate a valid file identifier.

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Hello,
I have this script.
I = (kron(ev1_of_alice,(ev1_of_bob+ev2_of_bob)))+kron(ev2_of_alice,(ev1_of_bob-ev2_of_bob));
if ~isnan(I)
fprintf("I = "+ I + "\n");
if abs(I)>2
fprintf("Violated Bell Inequality");
end
else
fprintf("Not enough data to determine S\n")
end
And when I run the script I have this error:
Error Using fprintf Invalid file identifier. Use fopen to generate a valid file identifier.
But I dont understand anything I is not a file I am trying to write a value not a file. How can I solve it?

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채택된 답변

the cyclist
the cyclist 21 Jun 2020
Is this good enough?
I = rand(2);
if ~isnan(I)
I
if abs(I)>2
fprintf("Violated Bell Inequality");
end
else
fprintf("Not enough data to determine S\n")
end

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추가 답변(1개)

madhan ravi
madhan ravi 21 Jun 2020
"I = "+ I + "\n" % without fprintf(...)

  댓글 수: 3

the cyclist
the cyclist 21 Jun 2020
Because of the error OP is getting, I'm pretty sure that the variable I is a numeric array, so this method probably doesn't really display what is wanted.

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