I do not know why I am getting an error, i am trying to hand in this project but i will get a zero if the code can not be read. Please help me.

Question

Matt Reiser 2015-4-30

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回答： Image Analyst 2015-4-30

Getting an error

Error: Function definitions are not permitted in this context.
% P2 CS101-104 1234
% first LAST
%
function p2_8145 ( NN )
  fprintf('%20s %15s %-7d\n','LAST','first',1234);
  approx= p2_part_a (NN);
  fprintf('%-9d %10.6f\n',NN,approx);
  approx= p2_part_b (NN);
  fprintf('%-9d %10.6f\n',NN,approx);
  approx= p2_part_c (NN);
  fprintf('%-9d %10.6f\n',NN,approx);
  approx=p2_part_d (NN);
  fprintf('%-9d %10.6f\n',NN,approx);
  [iter approx]=p2_part_e (NN);
  fprintf('e: %-9d %10.6f\n',iter,approx);
end
function v1=p2_part_a (n)   %PART A
  v1a = 1:2:(2*n+1);
  v1b = 1 ./ (v1a);
  v1  = 4.*sum(v1b .* vla);
end
function v1=p2_part_b (n)    %PART B
  v1a=1:4:4*n+1;
  v1a=1./v1a;
  v1b=3:4:4*n+3;
  v1b=1./v1b;
  v1=minus(v1a,v1b);
  v1=4*sum(v1);
end
function v1=p2_part_c (n)  %PART C
  v1a= 0:1:n;
  v1b= (4 .* vla +1) .* (4 .* vla +3);
  v1c= 2 ./ (v1b);
  v1 = 4.*sum(v1c);
end
function v1=p2_part_d (n) %PART D
  v1=0;
  for v1a=0:1:n;
    v1b=2*v1a+1;
    v1c=(-1)^v1a/v1b;
    v1 =v1+(-1)^ v1a / vlb;
  end
  v1=4*v1;
end
function [ii vl] =p2_part_e ()  %PART E
  vl=0;
  ii=0;
  v1a= (1/(2*ii+1));
  while v1a >= 10^(-7)
    v1 = v1+(-1)^ii * vla;
    ii=ii+1;
    v1a=(1/(2*ii+1));
  end
  v1 = 4*v1;
end

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Answer 1

Ken Atwell 2015-4-30

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You cannot put function declarations inside a MATLAB script. Cut 'n' paste each function into its own file, naming the files p2_part_a.m, p_part_b.m, and so on.

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Answer 2

Image Analyst 2015-4-30

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在 MATLAB Online 中打开

That would be permitted if it was a function in a file called p2_8145.m. But from the error message it looks like those functions are after some script in the same file. What is the name of the m file? Let's say it's called test.m. Then you can have all those functions in test.m if you put this line before any of your script lines:

function test

and since you've chosen to end your functions with the "end" keyword, you'll also need to end test() with an "end" also

function test
    % Now code to call the other functions, like p2_8145().....
end
% Now other functions can be listed in the same file.
function p2_8145 ( NN )

and so on......