Puoi aprire il codice e modificare la funzione: vedi l'Help
You can open the Code and modify the function: see the Help
HELP

// --- f blue, g green, h red, k orange ----

function f(x) { y = Math.abs(x*x+3*x)+x*x-2; return y }
function g(x) { y = 1/0; return y }
function h(x) { y = y=1/0; return y }
function k(x) { y = y = 1/0; return y }
// function h(x) { y = -Math.abs(x*x+3*x)+x*x-2; return y }
// function k(x) { y = (x*x+3*x)+x*x-2; return y }

aX = -5; bX = 5; aY = -10; bY = 60
Dx = 1/2; Dy = 5
// aX = -1; bX = 1; aY = -3; bY = 3
// Dx = 1/10; Dy = 1/2