y = a x² + b x + c

a = -1.4 (slider from -2 to 5, step 0.1)
b = -0.5 (slider from -2 to 5, step 0.1)
c = 4 (slider from -3 to 5, step 0.1)
p: 1.0 * 1.0 * 1.0 y = a * 1.0 * 1.0 * 1.0 x^(2.0) + b * 1.0 * 1.0 * 1.0 x + c
Text2: p + ""