/prog/ - Difference Between a Mathematician and a Programmer

Name: Anonymous 2018-10-02 23:34

Mathematician:
fib(n) = ((1/2+sqrt(5)/2)^n - (1/2-sqrt(5)/2)^n)/sqrt(5)

Programmer:

#include <iostream>
using namespace std;

int main()
{
    int n, t1 = 0, t2 = 1, nextTerm = 0;

    cout << "Enter the number of terms: ";
    cin >> n;

    cout << "Fibonacci Series: ";

    for (int i = 1; i <= n; ++i)
    {
        // Prints the first two terms.
        if(i == 1)
        {
            cout << " " << t1;
            continue;
        }
        if(i == 2)
        {
            cout << t2 << " ";
            continue;
        }
        nextTerm = t1 + t2;
        t1 = t2;
        t2 = nextTerm;
        
        cout << nextTerm << " ";
    }
    return 0;
}

Name: Anonymous 2018-10-03 5:42

>>1
C programmer:

#include <stdio.h>
#include <stdlib.h>
#include <math.h> //compile with -O3  fib.c -lm
long double fib(long double n){
return (powl((1.0/2.0+sqrtl(5.0)/2.0),n) - powl((1.0/2.0-sqrtl(5.0)/2.0),n))/sqrtl(5.0);}
int main(int argc,char**argv){if(argc==2){printf("%LG",fib((long double)strtoull(argv[1],NULL,10)));}}

Edited on 03/10/2018 05:47.

>>1↵
C programmer:
>>1 ↵
C programmer: 
#include <stdio.h>
#include <stdlib.h>
#include <math.h> //compile with -O3  fib.c -lm
double fib(double n){↵
return (pow((1.0/2.0+sqrt(5.0)/2.0),n) - pow((1.0/2.0-sqrt(5.0)/2.0),n))/sqrt(5.0);}↵
int main(int argc,char**argv){if(argc==2){printf("%G",fib(strtod(argv[1],NULL)));}}
long double fib(long double n){↵
return (powl((1.0/2.0+sqrtl(5.0)/2.0),n) - powl((1.0/2.0-sqrtl(5.0)/2.0),n))/sqrtl(5.0);}↵
int main(int argc,char**argv){if(argc==2){printf("%LG",fib((long double)strtoull(argv[1],NULL,10)));}}

Name: Anonymous 2018-10-03 6:09

>>11
Actually..
http://void.wikidot.com/code:fib-c

Difference Between a Mathematician and a Programmer

1 Name: Anonymous 2018-10-02 23:34

8 Name: Anonymous 2018-10-03 5:42

12 Name: Anonymous 2018-10-03 6:09

Name: Anonymous 2018-10-02 23:34

Name: Anonymous 2018-10-03 5:42

Name: Anonymous 2018-10-03 6:09