math 3

A a b c x x 5 3 x y x y 1 y x y x x x y x x3 x2 4 123 456 N[123/456, 39] $0.269736842105263157894736842105263157894\ldots$ evalf(123/456, 39); 0.269736842105263157894 736842105263157894 &obar; ..

π ⅇ ⅇ ⅈ ⅈ γ ∞ &infty; &true; &false; &NotANumber; &NaN;

1 x