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 sin() cos() tan() asin() acos() atan() exp() sqrt() log() ln() quadp() quadn() min() max() abs() CtoKscale() FtoKscale() moredigits() uncertainty() avg() sum() using in symbols ° μ ΔHf° ％ ν Δ ℎνλ ΔᵣG° ρ ∞ ΦΨ constants Speed of light Planck Avogadro Boltzmann Gas constant elem. charge Faraday