how do you make the results of a loop into table?

Question

rick arellaga 2015-12-18

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/260848-how-do-you-make-the-results-of-a-loop-into-table

编辑： Walter Roberson 2015-12-19

here is my code

%start
syms 'x';
%to be able to input x 
fun= input ('Enter function in terms of "x":');
%user input
f=inline(fun);
z=diff(f(x));
%differentiate in terms of x
f1=inline(z);
xo=input('enter initial value "xo":');
%input user initial value
x=xo;
for i=0:1000
    y=x;
    x=y-(f(x)/f1(x)) ;
        if x==y
        break
        end
end
%loop 
disp(['Root: ',num2str(x), ] );
disp('In the beginning, God said that the four dimensional divergence of an antisymmetric second rank tensor equals zero and there was light.');
%output up to 7 decimal places
m=input('Do you want to continue, Y/N [Y]:','s');
if m=='Y'
    clc
    newtonrap
else
    clc
end
%ask to exit or continue

so, I want to take the answers of 'x','y',f(x) and f1(x) within the loop an make a table out of it. is that possible?

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rick arellaga 2015-12-19

在 MATLAB Online 中打开

sorry dude i am new to this

now here is my code

if true
%start
syms 'x';
%to be able to input x 
fun= input ('Enter function in terms of "x":');
%user input
f=inline(fun);
z=diff(f(x));
%differentiate in terms of x
f1=inline(z);
xo=input('enter initial value "xo":');
%input user initial value
x=xo;
disp('   f(x)    f!(x)  f(x)/f!(x)   x')
disp('======== ======== ========= =========')
for i=0:250
  fprintf('%8f %8f %8f %8f\n',f(x),f1(x),b,x)
  y=x;
  b=(f(x)/f1(x));
  x=y-b; 
        if x==y
        break
        end
end
%loop 
disp(['Root: ',num2str(x,8), ] );
    % code
but now im getting the error using fprintf after i restarted matlab
  end

Image Analyst 2015-12-19

I don't see any table - that is a very specific special kind of variable. Looks like you're just printing a table to the command line without using a "table" variable. You forgot to give us the inputs you entered into this program. I, for one, will wait until you give us that.

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