2nd sin cos tan sec csc cot x² x³ xʸ √ ∛ ⁿ√ 1/x ln log log₂ logₐ eˣ 10ˣ 2ˣ π e φ |x| ⌊x⌋ ⌈x⌉ round ( ) n! nPr nCr % rand Ans MS MR M+ M− MC C