Need Help

[breal]

how can i write a program in c using fibonacci series upto 200 numbers & using for loop statement ???

[ahluka]

How much of the language do you know?
You need to find some tutorials - google around or buy some books, or goto www.cprogramming.com

Not sure what DaniWebs homework policy is since I've only just become a member myself, but where I usually moan and groan (cboard), we don't do it for you.

[breal]

tht wuz not answer to my question.......btw wot do u mean by "we dont do it for u" ???

i have written that using "for loop"

[iamthwee]

Binet's formula:

[tex]Fib(n)=\frac{\phi^n-(-\phi)^n}{\sqrt{5}}[/tex]

Where [tex]\phi[/tex] is equal to:

[tex]\frac{1+\sqrt{5}}{2}[/tex]

Hope this helps :-)

[breal]

thank you so much but tht wuz not helpful for me.....

[iamthwee]

thank you so much but tht wuz not helpful for me.....

Of course it is, if you are using fast fourier transforms to approximate the power functions and a library that supports arbitary floating point precision it will be perfect for you.
:-)

[ahluka]

tht wuz not answer to my question.......btw wot do u mean by "we dont do it for u" ???

i have written that using "for loop"

Well post up what you've got so far so we can help you.

[iamthwee]

hello I found this I hope this helps

#include<stdio.h>
#define SIZE_NUM 100000000
#define VECTOR_DIM 500//max fib(10000)
#define display_arr(vec)for(i=indfin-1; i>-1; i--){temp=SIZE_NUM/10;if(i!=indfin-1)while(1){if(vec/temp) break;putchar('0');temp/=10;}printf("%d", vec);}

int main()
{int i=-1, opt;int indfin=1, ref=1;
unsigned int n0[VECTOR_DIM] = {0}, n1[VECTOR_DIM] = {1};
unsigned int temp;printf("Enter fib(n)");
scanf("%d", &opt);if(!opt)
printf("The Fibonacci number for 0 is 0");else{
while(i++<opt){indfin=0;
if(ref){while(temp = n0[indfin] + n1[indfin]){
n0[indfin] = temp%SIZE_NUM;n0[indfin+1] = temp/SIZE_NUM + n0[indfin+1];
indfin++;}ref=0;}else{while(temp = n0[indfin] + n1[indfin]){
n1[indfin] = temp%SIZE_NUM;n1[indfin+1] = temp/SIZE_NUM + n1[indfin+1];
indfin++;}ref=1;}}printf("The Fibonacci number for %d is \n ", opt);
if(ref) display_arr(n0)
else display_arr(n1)}putchar('\n');getchar();getchar();return 0;}

btw my binets formula was wrong... the minus phi needs to be raised to the minus n. tee he he

[edit] I've indented and highlighted keywords to aid clarity, in case you decide to submit as your own work[/edit]