a_1 = 1 (slider from -5 to 5, step 0.1)
b_1 = 1 (slider from -5 to 5, step 0.1)
c_1 = 0 (slider from -5 to 5, step 0.1)
a_2 = 1 (slider from -5 to 5, step 0.1)
b_2 = 1 (slider from -5 to 5, step 0.1)
c_2 = 0 (slider from -5 to 5, step 0.1)
f(x) = a_1 * sin(b_1 * x + c_1)
g(x) = a_2 * sin(b_2 * x + c_2)
somme(x) = f(x) + g(x)