Formula Symbols - A

Written by Jerry Ratzlaff on . Posted in Nomenclature & Symbols for Engineering, Mathematics, and Science

SymbolGreek SymbolDefinitionUSMetric
\(V\) - Abbe number dimensionless number dimensionless number
\(p_a\) - absolute pressure \(lbf/ft^2\) \(kPa\)
\(\epsilon \) epsilon absolute roughness \(in\) \(mm\)
\(T_a\) - absolute temperature \(^\circ F\) \(^\circ C\)
\(T_a\) - absolute temperature \(^\circ R\) \(^\circ K\)
\(\mu \) mu absolute viscosity \(lbf-sec/ft^2\) \(Pa\cdot s\)
\( a\) - acceleration \(ft/sec^2\) \(m/s^2\)
\( g\) - acceleration of gravity \(ft/sec^2\) \(m/s^2\)
\(\gamma\) gamma activity coefficient dimensionless number dimensionless number
\(e\) - actual vapor pressure \(lbf/ft^2\) \(Pa\)
\( AHP\) - air horsepower \(hp\) -
\(F_a\) - air resistance force - -
\( AFR\) - air-fuel ratio \(lbm/lbm\) \(kg/kg\)
\( m_a\) - air mixture - -
\(s\) - AGMA stress number \(lbf/in^2\) \(Pa\)
\(A\) - allowance - -
\( AC\) - Alternating current amp -
\(n\) - amount of substance - -
\( I\) - amp - -
\(A\) - amplitude \(ft\) \(m\)
\(A\) - amplitude \(rad\) \(rad\)
\(AR\) - amplitude ratio - -
\(A\) - angle \(deg\) \(deg\)
\(\theta\) theta angle \(deg\) \(deg\)
\(\phi\) phi angle \(rad\) \(rad\)
\(\deg\) deg angle \(deg\) \(rad\)
\(\Delta A\) delta angle differential \(deg\) \(rad\)
\(\gamma \) gamma angle of twist \(deg\) \(rad\)
\(\alpha \) alpha angular acceleration \(rad/sec^2\) \(rad/s^2\)
\(\theta \) theta angular displacement \(deg\) \(rad\)
\(L\) - angular momentum - \(N \cdot m \cdot s\)
\(\theta\) theta angular position \(rad\) \(rad\)
\(v_a\) - angular velocity \(rad/s\) \(rad/s\)
\(\omega \) omega angular velocity \(rad/sec\) \(rad/s\)
\( F_a\) - applied force - -
\(Ar\) - Archimedes number dimensionless number dimensionless number
\(A\) - area \(ft^2\) \(m^2\)
\(\Delta A\) delta area differential - -
\(A_d\) - area differential - -
\(f_a\) - area gradient \(ft\) \(m\)
\(\alpha\) alpha Arrhenius number dimensionless number dimensionless number
\(p_a\) - atmospheric pressure \(lbf/ft^2\) \(kPa\)
\(u\) - atomic mass unit \(lbm\) \(kg\)
\(Z\) - atomic number dimensionless number dimensionless number
\(A\) - atomic weight \(lbm/lbmol\) \(kg/kmol\)
\(A\) - Atwood number dimensionless number dimensionless number
\(Nv\) - Avagadro's number - -
\(\bar {a}\) - average acceleration \(ft/sec^2\) \(m/s^2\)
\(a_a\) - average acceleration \(ft/sec^2\) \(m/s^2\)
\(\bar {F}\) - average force \(lbf\) \(N\)
\(F_a\) - average force \(lbf\) \(N\)
\(\bar {v}\) - average velocity \(ft/sec\) \(m/s\)
\(v_a\) - average velocity \(ft/sec\) \(m/s\)