print to output file

1 ビュー (過去 30 日間)
Ayda 2011 年 11 月 22 日
Good evening\morning
I wrote a code that will give me a root for a function using Bisection Method and False Position Method
I want to print on output file the follownig
k \t x2 \t absolute_c \t mid\t absolute_m\t
i tried to print it using
result= [i;x2;absolute_m;mid;absolute_m]; fprintf(fid,'%.2f\t\t\t %.6f\t\t %.6f\t\t\t %.6f\t\t %.6f\t\t\n',i,result); but it didn't work
how can I print this?
fid = fopen('hw6.txt','w');
x0 = input('inter x0 = ');
x1 = input('inter x1 = ');
tolerance=input('inter the tolerance, tolerance = ');
f = @(x) sin(2*pi*x)+ exp(1.2*x) + x - 2.5;
copy_x0= x0;
copy_x1= x1;
% Using Bisection
for i=0:inf
x2= (x0+x1)/2
c= f(x2)
absolute_c= abs(c)
if absolute_c < tolerance
break
end
if f(x0)*c <0
x1=x2;
continue
else
x0=x2;
continue
end
end
% Using False Position
for i=0:inf
mid= copy_x1 - (f(copy_x1)* (copy_x1-copy_x0)/(f(copy_x1)-f(copy_x0)))
m = f(mid)
absolute_m= abs(c)
if absolute_m < tolerance
break
end
if f(copy_x0)*m <0
copy_x1=mid;
continue
else
copy_x0=mid;
continue
end
end
fclose(fid)

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