units $ A atm C Cd cm Da eV g h Hz J K L m M min mmHg mol N Pa parsec s torr V W °aC °ΔC Å Ω ％ functions max() ln() tan() log() abs() quadp() moredigits() sin() CtoKscale() uncertainty() avg() sqrt() quadn() sum() min() cos() exp() FtoKscale() using in symbols °aC μ ％ ν Δ ℎνλ ΔᵣG°′ ρ ∞ ΦΨ