F(0,p/2)

y=-p/2

p = 1 (slider from -5 to 5, step 0.1)
d: 1.0 x^(2.0) = 2.0 * p * 1.0 y
tekst1: "Enačba parabole:" + "
" + d
F: (0.0, p / 2.0)
e: 1.0 y = -1.0 * p / 2.0