LRN pgm STO CP RCL x² √x log 10^x ln e^x y^x CE 2nd inv sin⁻¹ sin cos⁻¹ cos tan⁻¹ tan EE ( ) ÷ RST SST BST GTO P→R Pause R→P R/S GSB × 7 8 9 - D→R π 4 5 6 + Σ+ 1 2 3 = s x̄ 0 . +/- C