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_scienceMathsEquation2nd

Resolution of the quadratic equation (ax2 + bx +c = 0).
The results are in R only (not complex numbers)

Prototype :

fun [F F F] [F F]

• F : a.
• F : b.
• F : c.

Return : [F F] the result or nil if error

See also :

Example :

fun main ()=
	_showconsole;
	
	let _scienceMathsEquation2nd 1.0 2.0 (-.3.0) -> [p q] in
	(
	_fooF p;	// 1.0
	_fooF q;	// -3.0
	);
	let _scienceMathsEquation2nd 1.0 2.0 3.0 -> [p q] in
	(
	_fooF p;	// NIL	// Complex number
	_fooF q;	// NIL	// Complex number
	);
	let _scienceMathsEquation2nd (-.2.0) 2.0 1.0 -> [p q] in
	(
	_fooF p;	// -0.366025
	_fooF q;	// 1.366025
	);
	0;;

Note

If the results are complex numbers, this function returns nil.

Results are approximations (depends on float definition)