2nd quit mode insert delete clear 10^x log angle prb stat data ÷ e^x ln u n/d a+bi ×10^n f↔d table × hyp π sin⁻¹ sin cos⁻¹ cos tan⁻¹ tan - x² √ x⁻¹ % ( ) + ³√ x² 7 8 9 = clear var x,y 4 5 6