c

(Parabelformel in Normalform)

a: -1
b = -0.5 (slider from -5 to 5, step 0.1)
c = 1 (slider from -5 to 5, step 0.1)
C: (0, c)
sign_{x} = If(b < 0, "", "+")
sign_{1} = If(c < 0, "", "+")
text1: "f(x) = \textcolor{red}{" + (LaTeX[a]) + "}x²" + (LaTeX[sign_{x}]) + "\textcolor{#004499}{" + (LaTeX[b]) + "}x" + (LaTeX[sign_{1}]) + "\textcolor{#007700}{" + (LaTeX[c]) + "}"
f(x) = (a * x^(2)) + (b * x) + c
Eingabefeld_a = Textfield(a)
Eingabefeld_b = Textfield(b)
Eingabefeld_c = Textfield(c)