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Posted 16 May 2010

# A simple program to solve quadratic equations with

, 11 Nov 2010
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A simple program to calculate quadratic equation with.Input MUST have the format:AX2 + BX + C = 0EXAMPLE: input the equation 2X2 + 4X -30 = 0 as:A= 2 B= 4 C= -30The answers for AX2 + BX + C = 0 should be 3 and -5.x1=3x2=-5 bool solver(float...
A simple program to calculate quadratic equation with.

Input MUST have the format:
AX2 + BX + C = 0

EXAMPLE: input the equation
2X2 + 4X -30 = 0 as:

A= 2 B= 4 C= -30

The answers for AX2 + BX + C = 0 should be 3 and -5.

x1=3

x2=-5

```
bool solver(float a,float b, float c, float &x1, float &x2)
{
float delta = sqrt( (b*b) - (4*a*c) );

if (!a)  return false;

x1 = ( -b + delta)/(2*a);
x2 = ( -b - delta)/(2*a);

return true;
}

int main()
{
float a=2,
b=4,
c=-30;

/*
printf("a = ");
scanf("%f", &a);
printf("b = ");
scanf("%f", &b);
printf("c = ");
scanf("%f", &c);

*/

float x1,x2;
if ( solver(a, b ,c, x1, x2) ) 	printf("x1=%f\nx2=%f\n",x1,x2);

return 0;
} ```

...

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