Formula Symbols - P

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

Mathematics Symbols

Mathematics Terms

Formula Symbols - P

For other symbols see:  A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

SymbolGreek SymbolDefinitionUSMetric
\(\partial\) partial partial derivative - -
\(\rho_p\) rho particle density \(lb\;/\;ft^3\) \(kg\;/\;m^3\)
\(R \;or\; r\) - particle position vector - -
\(Pe\) - Peclet number dimensionless number dimensionless number
\(P\) - perimeter \(ft\) \(m\)
\(T\) - period - -
\(T\) - periodic time - -
\(PF\) - performance factor - -
\(PN\) - performance number - -
\(\mu\) mu permeability  \(ft^2\) \(m^2\)
\(\mu_o\) mu permeability of vacuum constant constant
\(\epsilon\) epsilon permittivity - \(F\;/\;m\)
\(\epsilon_o\) epsilon permittivity of vacuum constant constant
\(\gamma \) gamma photon - -
\(\pi\) pi Pi dimensionless number dimensionless number
\(d\) - pipe inside diameter ID \(in\) \(mm\)
\(W_p\) - pipe weight \(lb\;/\;ft\) \(kg\;/\;m\)
\(F_p\) - piping geometry factor dimensionless number dimensionless number
\(PDV\) - piston deck volume \(in^3\) \(cc^3\)
\(Pl \;or\; h\) - Planck constant constant constant
\(Y\) - Planck function constant constant
\(l_p\) - Planck length constant constant
\(m_p\) - Planck mass constant constant
\(t_l\) - Planck time constant constant
\(\alpha \;or\; \beta \;or\; \gamma \;or\; \theta \;or\; \phi\) alpha , beta , gamma , theta , phi plane angle \(deg\) \(rad\)
\(p\) - plasma pressure - -
\(Z\) - plastic section modulus of a steel beam \(in^2\) \(mm^2\)
\(b\) - plate long side dimension \(ft\) \(m\)
\(a\) - plate short side dimension \(ft\) \(m\)
\(O\) - point of origin - -
\(Po \;or\; \mu \;or\; \nu\) mu , nu Poisson's Ratio - -
\(J\) - polar area moment of inertia \(ft^4\) \(m^4\)
\(e\) - polarization vector - -
\(n\) - polytropic exponent - -
\(J\) - polar moment of inertia \(in^4\) \(m^4\)
\(P \;or\; \phi\) phi porosity percent percent
\(x\) - position - -
\(x_d \;or\; \Delta x\) Delta position differential - -
\(U \;or\; V\) - potential difference - -
\(PE \;or\; E_p\) - potential energy \(ft-lbf\) \(J\)
\(P\) - power \(lbf\;/\;sec\) \(W\)
\(P\) - power \(HP\) \(W\)
\(P\) - power \(Btu \;/\; sec\) \(kW\)
\(pf\) - power factor dimensionless number dimensionless number
\(W\) - power jack load \(lbf\) \(N\)
\( N_p\) - Power number dimensionless number dimensionless number
\( PTR\) - power-to-heat ratio - -
\(Pr\) - Prandtl number dimensionless number dimensionless number
\(P \;or\; p\) - pressure \(lb\;/\;in^2 \;or\; psi\) \(Pa\)
\(\phi\) - pressure angle \(deg\) \(deg\)
\(C_p \;or\; \beta\) beta pressure coefficient dimensionless number dimensionless number
\(p_d \;or\; \Delta p\) Delta pressure differential \(lb\;/\;in^2 \;or\; psi\) \(Pa\)
\(x_T\) - pressure differential ratio factor \(lb\;/\;in^2 \;or\; psi\) \(Pa\)
\(PG\) - pressure gradient \(psi\;/\;ft\) \(kPa\;/\;m\)
\(p_{inc}\) - pressure increase \(lb\;/\;in^2 \;or\; psi\) \(Pa\)
\(F_L\) - pressure recovery factor - -
\(\alpha\) alpha pressure wave velocity \(lb\;/\;in^2 \;or\; psi\) \(Pa\)
\(S\) - probability current density - -
\(P\) - probability density - -
\(\propto\) propto proportional to - -
\(p\) - proton - -
\(\eta\) eta pulley efficiency - -
\(\epsilon\) epsilon pulley loss factor - -