2nd AC ⌫ +/- ANS CE sin cos tan ln log xʸ sinh cosh tanh log₂ √ x² π e EE x! x⁻¹ % nCr nPr ˣ√y |x| ( ) 7 8 9 ÷ × - 4 5 6 + = STO▶ 1 2 3 0 . %