_01b_eqn2 Namespace Reference

Solving second degree equations. More...

Functions
def	eqn2 (a, b, c)
	Solves a second degree equation: \(ax²+bx+c=0\). More...
def	main ()

Detailed Description

Solving second degree equations.

Having \(ax^2+bx+c=0,\) the roots are given by the quadratic formula

\[x=\frac{-b \pm \sqrt {b^2-4ac}}{2a},\]

where the symbol "±" indicates that both \(x=\frac{-b + \sqrt {b^2-4ac}}{2a}\quad\text{and}\quad x=\frac{-b - \sqrt {b^2-4ac}}{2a}\) are solutions of the quadratic equation.

Author

Paulo Roma

Since

15/04/2010

See also

http://en.wikipedia.org/wiki/Quadratic_equation

Function Documentation

eqn2()

def _01b_eqn2.eqn2	(		a,
			b,
			c
	)

Solves a second degree equation: \(ax²+bx+c=0\).

Parameters

a	a coefficient.
b	b coefficient.
c	c coefficient.

Returns

root1, root2

Referenced by main().

main()

def _01b_eqn2.main

(

)

References eqn2(), and _01d_dec2bin.input.