+ 11

# Can someone tell me the easiest code to find roots of a quadratic equation in c?

C

10th Feb 2019, 4:36 PM
Sharon Shelton
+ 9
If b**2-4ac is lesser than 0, what is the code and it's output
10th Feb 2019, 5:28 PM
Sharon Shelton
+ 8
Thanks Peter
10th Feb 2019, 5:48 PM
Sharon Shelton
+ 7
I want the code, sir!
10th Feb 2019, 5:05 PM
Sharon Shelton
+ 7
Yeah, lab program
10th Feb 2019, 5:23 PM
Sharon Shelton
+ 7
10th Feb 2019, 5:44 PM
Sharon Shelton
+ 6
I can do it. But little confusing..
10th Feb 2019, 5:09 PM
Sharon Shelton
+ 6
Somewhat, I understood the logic
10th Feb 2019, 5:45 PM
Sharon Shelton
+ 4
Use this formulas: X1 = (-b+sqrt(b**2-4*a*c))/(2*a) X2 = (-b-sqrt(b**2-4*a*c))/(2*a)
10th Feb 2019, 4:50 PM
Maneren
+ 4
Wow peter, good explanation it helps me too. I haven't learned this yet in school so i don't know so much
10th Feb 2019, 5:50 PM
Maneren
+ 3
ohh maths i think iâm allergic but try this on lol b2-4ac is known as the discriminant of a quadratic equation. The discriminant tells the nature of the roots. If discriminant is greater than 0, the roots are real and different. If the discriminant of a quadratic function is equal to zero, that function has exactly one real root and crosses the x-axis at a single point. To see this, we set b2 â4ac = 0 in the quadratic formula to get, is the x-coordinate of the vertex of a parabola?? something like that i feel old trying recall old maths. good luck hope the explanation helps the logic gates start working lol
10th Feb 2019, 5:47 PM
peter
+ 1
Just do the input and output for this, you can do it alone, can't you? Also isn't this a homework or sth?
10th Feb 2019, 5:06 PM
Maneren
+ 1
And is it homework or what?
10th Feb 2019, 5:14 PM
Maneren
+ 1
Have you done anything yourself and you want correcting it or you want me (anyone other) to code it from scratch? And is it too hard to do input, and output?
10th Feb 2019, 5:24 PM
Maneren
30th Jan 2023, 9:53 PM
Kingdavid Christian