C Problem

[fl1pfl0p 0]

as'kum,nak mintak bantuan dari sape2 yg power c..

camni aku buat program untuk mengira nilai T jika diberi nilai l .Formulanya mcm ni T = 2 * PI * ( l / g)^0.5 di mana PI = 3.14159 dan g = 9.81. T adalah period dan l adalah length.ni formula ayunan bandul.

ni source code yg aku buat:

#include <stdio.h>
#include <conio.h>
#include <math.h>

#define PI 3.1415926
#define g 9.81

int main()
{
int i = 0;
double T[4],l[4];
do
{
printf("Enter the value of period %d to find the length: ", i+1);
scanf("%lf", &T[i]);
fflush(stdin);
l[i] = g*pow((T[i]/(2*PI)),2);
i++;
}
while(i<5);

for(i=0;i<5;i++)
{
printf("The length for period %d is : %lf\n",i+1, l[i]);
}
i=0;
do
{
printf("Enter the value of length %d to find the period: ", i+1);
scanf("%lf", &l[i]);
fflush(stdin);
T[i] = 2*PI*pow((l[i]/g), 0.5);
i++;
}
while(i<5);

for(i=0;i<5;i++)
{
printf("The period for length %d is : %lf\n",i+1, T[i]);
}
getch();
return 0;
}

bila compile takde error tapi result dapat salah..output dia macam ni:

Enter the value of period 1 to find the length: 10
Enter the value of period 2 to find the length: 20
Enter the value of period 3 to find the length: 30
Enter the value of period 4 to find the length: 40
Enter the value of period 5 to find the length: 50
The length for period 1 is : 24.849021
The length for period 2 is : 99.396085
The length for period 3 is : 223.641190
The length for period 4 is : 397.584338
The length for period 5 is : 621.225528
Enter the value of length 1 to find the period: 24.849021
Enter the value of length 2 to find the period: 99.396085
Enter the value of length 3 to find the period: 223.641190
Enter the value of length 4 to find the period: 397.584338
Enter the value of length 5 to find the period: 621.225528
The period for length 1 is : 621.225528--->sepatutnya dapat 10 balik :wacko: 
The period for length 2 is : 20.000000
The period for length 3 is : 30.000000
The period for length 4 is : 40.000000
The period for length 5 is : 50.000000

aku compile guna dev-c++..

puas aku memikirkan apa problem nye code nih.sape2 yg pakar tu mintak tolong ye..

Edited November 3, 2007 by fl1pfl0p

[encik pot pet 0]

double T[4],l[4]; kena kasi cukup la

[fl1pfl0p 0]

err..tak paham la encik pot pet .boleh terangkan lebih detail tak apa yg tak cukup? .sori la saya ni c ni baru lagi..

[encik pot pet 0]

awak nak guna 5 values kan?

oleh yg demikian,

double T[5],l[5];

nak access, T[0].T[1],..,T[4] = 5 elemen

jgn konfius

Edited November 3, 2007 by encik pot pet

[fl1pfl0p 0]

err..tak paham la encik pot pet .boleh terangkan lebih detail tak apa yg tak cukup? .sori la saya ni c ni baru lagi..

owh..ok saya dah dapat .. saya tukar jadi double T[5],l[5]; dapat result betul.tapi kan kenapa double T[4],l[4]; tak dapat result betul. bukan ke cukup 5 array iaitu T[0] sampai T[4] .boleh tak terangkan kenapa?

[encik pot pet 0]

awk dah konfius.. pegi baca pasal array balik

[fl1pfl0p 0]

ok ..saya baca balik nnt.. terima kasih byk2 sebab sudi tolong kalo tidak sy konfius smpi bila2..