| clear | |
| f(1) = 1; | |
| f(2) = 0; | |
| f(3) = 1; | |
| for n = 4:100 | |
| f(n) = f(n-1)-2*f(n-2)+f(n-3); | |
| end | |
| max(f) | |
| min(f) | |
| sum(f) | |
| i = length(find(f<0)) | |
| j = length(find(f>0)) | |
| k = length(find(f==0)) |
| clear | |
| f(1) = 1; | |
| f(2) = 0; | |
| f(3) = 1; | |
| for n = 4:100 | |
| f(n) = f(n-1)-2*f(n-2)+f(n-3); | |
| end | |
| max(f) | |
| min(f) | |
| sum(f) | |
| i = length(find(f<0)) | |
| j = length(find(f>0)) | |
| k = length(find(f==0)) |