RESOLUTION EQUATION DU SECOND ORDRE
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#include <stdio.h>
#include <stdlib.h>
void main()
{
int a;
int b;
int c;
float discriminant;
float X1;
float X2;
printf("nn ************* RESOLUTION EQUATION SECOND DEGRE*****************nn");
printf("nn ********************** AX2 + BX + C = 0 *****************************nn");
printf(" Merci de saisir A :nn");
scanf("%d",&a);
printf(" Merci de saisir B :nn");
scanf("%d",&b);
printf(" Merci de saisir C :nn");
scanf("%d",&c);
system("cls");
discriminant=(b*b - 4*a*c);
printf("nn valeur du discriminant est : %f *********************nn",discriminant);
if (discriminant>0)
{
X1=(-b+sqrt(discriminant))/(2*a);
X2=(-b-sqrt(discriminant))/(2*a);
printf("nn DEUX SOLUTIONS :nn");
printf("nn X1 = : %f *********************nn",X1);
printf("nn X2 = : %f *********************nn",X2);
}
else if (discriminant==0)
{
X1=-b/(2*a);
printf("nn UNE SOLUTION :nn");
printf("nn X1 = : %f *********************nn",X1);
}
else
printf("nn PAS DE SOLUTION RELLE nn");
getch();
}
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