Test

plot([x^2;x + 1;x - 1;x / 4])                                                   | 0
diff(cos(x))                                                                    | −sin(x) ∕ rad
comb(7;3)                                                                       | 35
7! / (4! * 3!)                                                                  | 35
comb(47;29)                                                                     | 4,568648126 x 10¹²