Formula Symbols - M

on 08 April 2016. Posted in Nomenclature & Symbols for Engineering, Mathematics, and Science

Mathematics and Management Rules and Symbols

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"M" Formula Symbols 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
Symbol	Greek Symbol	Definition	English	Metric	SI	Value
$Ma$	-	Mach number	dimensionless	dimensionless	dimensionless	-
$Mi$	-	Machinability index	dimensionless	dimensionless	dimensionless	-
$\Sigma$	Sigma	macroscopic cross section	-	-	-	-
$M$, $\;m_i$	-	magnetic	-	-	-	-
$\mu_o$	mu	magnetic constant	$\large{\frac{H}{ft}}$	$\large{\frac{H}{m}}$	$H-m^{-1}$	$1.2566\;x\;10^{-6}$ $\large{\frac{H}{m}}$
$n_m$, $\;\nu_m$	nu	magnetic diffusivity	$\large{\frac{ft^2}{sec}}$	$\large{\frac{m^2}{s}}$	$m^2-s^{-1}$	-
$m$, $\;\mu$	mu	magnetic dipole moment	-	-	-	-
$B$	-	magnetic field	$T$	$T$	$kg-s^{-2}-A^{-1}$	-
$H$, $\;\vec{H}$	-	magnetic field strength	$\large{\frac{A}{ft}}$	$\large{\frac{A}{m}}$	$A-m^{-1}$	-
$\phi_B$, $\;\phi_m$	phi	magnetic flux	$\large{\frac{Wb}{in^2}}$	$\large{\frac{Wb}{mm^2}}$	$Wb-mm^{-2}$	-
$B$	-	magnetic flux density	$\large{\frac{Wb}{ft^2}}$	$\large{\frac{Wb}{m^2}}$	$Wb-m^{-2}$	-
$\Phi_o$	Phi	magnetic flux quantum	$\large{\frac{V}{sec}}$	$Wb$	$kg-m^2-s^{-2}-A^{-1}$	$2.067\;833\;758\;x\;10^{-15}$ $Wb$
$F_m$	-	magnetic force	$\large{\frac{lbm-ft}{sec^2}}$	$N$	$kg-m-s^{-2}$	-
$F_m$	-	magnetic force between parallel conductors	$\large{\frac{lbm-ft}{sec^2}}$	$N$	$kg-m-s^{-2}$	-
$B$, $\;\vec{B}$	-	magnetic induction	$T$	$T$	$kg-s^{-2}-A^{-1}$	-
$\mu$	mu	magnetic moment of a particle	-	-	-	-
$\mu$	mu	magnetic permeability	$\large{\frac{H}{ft}}$	$\large{\frac{H}{m}}$	$H-m^{-1}$	-
$\mu_0$	mu	magnetic permeability vacuum	-	$\large{\frac{N}{A^2}}$	$N-A^{-2}$	$1.256\;637\;0614\;x\;10^{-6}$ $\large{\frac{N}{A^2}}$
$U_m$	-	magnetic potential difference	-	-	-	-
$p_m$	-	magnetic pressure	$\large{\frac{lbm}{ft-sec^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$\beta$	beta	magnetic pressure ratio	dimensionless	dimensionless	dimensionless	-
$R_m$	-	Magnetic Reynolds number	dimensionless	dimensionless	dimensionless	-
$X$	-	magnetic susceptibility	-	-	-	-
$A$	-	magnetic vector potential	-	-	-	-
$F_m$	-	magnetomotive force	-	-	-	-
$M$	-	magnetization	-	-	-	-
$M$	-	magnification	-	-	-	-
$MF$		magnification factor	-	-	-	-
$h_{l-major}$	-	major head loss	$ft$	$m$	$m$	-
$v$	-	Manning equation	-	-	-	-
$n$	-	Manning friction coefficient	-	-	-	-
$n$	-	Manning's roughness coefficient	dimensionless	dimensionless	dimensionless	-
$Ma$	-	Marangoni number	dimensionless	dimensionless	dimensionless	-
$MS$, $MOS$	-	margin of safety	dimensionless	dimensionless	dimensionless	-
$M$	-	Markstein number	dimensionless	dimensionless	dimensionless	-
$m$	-	mass	$lbm$	$kg$	$kg$	-
$M$	-	mass scale	-	-	-	-
$\mu_m$	mu	mass attenuation coefficient	-	-	-	-
$\dot {m}_c$	-	mass condensation rate	-	-	-	-
$c$	-	mass consentration	$lbm$	$kg$	$kg$	-
$\rho $	rho	mass density	$\large{\frac{lbm}{ft^3}}$	$\large{\frac{kg}{m^3}}$	$kg-m^{-3}$	-
$D$, $\;D_m$	-	mass diffusivity	$\large{\frac{ft^3}{sec}}$	$\large{\frac{m^3}{s}}$	$m^3-s^{-1}$	-
$\Delta$	Delta	mass excess	-	-	-	-
$\dot {m}_f$	-	mass flow rate	$\large{\frac{lbm}{sec}}$	$\large{\frac{kg}{s}}$	$kg-s^{-1}$	-
$B$, $\;\Gamma$	Gamma	mass flow rate per unit area	$\large{\frac{lbm}{ft^2-sec}}$	$\large{\frac{kg}{m^2-s}}$	$kg-m^{-2}-s^{-1}$	-
$w$	-	mass fraction	-	-	-	-
$m$, $\;\dot {m}$	-	mass leak rate	$\large{\frac{lbm}{sec}}$	$\large{\frac{kg}{s}}$	$kg-s^{-1}$	-
$M$, $\;\vec{M}$	-	mass magnetization	$\large{\frac{A-ft^2}{lbm}}$	$\large{\frac{A-m^2}{kg}}$	$A-m^2-kg^{-1}$	-
$I$	-	mass moments of inertia	$lbm-ft^2$	$kg-m^2$	$kg-m^2$	-
$A$	-	mass number	-	-	-	-
$m_da$	-	mass of dry air	$lbm$	$kg$	$kg$	-
$m_ds$	-	mass of dry soil	$lbm$	$kg$	$kg$	-
$m_e$	-	mass of earth	$lbm$	$kg$	$kg$	-
$m_l$	-	mass of liquid	$lbm$	$kg$	$kg$	-
$\mu$	mu	mass of molecule	$\large{\frac{oz}{mol}}$	$\large{\frac{g}{mol}}$	$g-mol^{-1}$	-
$m_s$	-	mass of solid	$lbm$	$kg$	$kg$	-
$m_w$	-	mass of water	$lbm$	$kg$	$kg$	-
$m_wv$	-	mass of water vapor	$lbm$	$kg$	$kg$	-
$K$, $\;k$	-	mass transfer coefficient	dimensionless	dimensionless	dimensionless	-
$\dot {m}_t$	-	mass transfer rate	$\large{\frac{lbm}{sec}}$	$\large{\frac{kg}{s}}$	$kg-s^{-1}$	-
$G$	-	mass velocity	-	-	-	-
$J$	-	Massieu function	-	-	-	-
$D$	-	material density	$\large{\frac{lbm}{ft^3}}$	$\large{\frac{kg}{m^3}}$	$kg-m^{-3}$	-
$K_{cE}$	-	material factor for wood column design	-	-	-	-
$S_f$	-	maximum allowable stress	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$S$	-	maximum allowable tensile stress	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$M$	-	maximum bending moment	$lbf-in$	$N-mm$	$N-mm$	-
$\Delta_{max}$	Delta	maximum calculated beam deflection	$in$	$mm$	$mm$	-
$h_{max}$	-	maximum height of a projectile	$ft$	$m$	$m$	-
$P_{max}$		maximum load	-	-	-	-
$M_u$	-	maximum moment from factored loads for LRFD beam design	$lbf-ft$	$N-m$	$kg-m^2-s^{-2}$	-
$V$	-	maximum shear force	$lbf$	$N$	$kg-m-s^{-2}$	-
$\tau$	tau	maximum shear stress	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$S$	-	maximum soil moisture retention after runoff begins	-	-	-	-
$H_{sp}$	-	maximum surge pressure head in a length of pipe	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$P_{spf}$	-	maximum surge pressure for a fluid	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$m$, $\;\mu$	mu	mean	-	-	-	-
$D$	-	mean coil diameter	$in$	$mm$	$mm$	-
$h_m$	-	mean depth	$in$	$mm$	$mm$	-
$MEP$	-	mean effective pressure	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$v$	-	mean flow velocity	-	-	-	-
$l$, $\;\lambda$	lambda	mean free path	$ft$ or $in$	$m$ or $mm$	$m$ or $mm$	-
$\tau$, $\;\tau_m$	tau	mean life	-	-	-	-
$E_cm$	-	mean modulus of elasticity of concrete	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$E_cm28$	-	mean modulus of elasticity of concrete at 28 days	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$E_cmt$	-	mean modulus of elasticity of concrete at age t	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$E_cmto$	-	mean modulus of elasticity of concrete when loading starts at age t_o	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$v_m$	-	mean velocity	$\large{\frac{ft}{sec}}$	$\large{\frac{m}{s}}$	$m-s^{-1}$	-
$h$	-	mean water depth	$ft$	$m$	$m$	-
$M$	-	mechanical advantage	dimensionless	dimensionless	dimensionless	-
$ME$	-	mechanical efficiency	dimensionless	dimensionless	dimensionless	-
$ME$	-	mechanical energy	$lbf-ft$	$J$	$kg-m^2-s^{-2}$	-
$W$	-	mechanical work	-	-	-	-
$\rho_m$	rho	media density	$\large{\frac{lbm}{ft^3}}$	$\large{\frac{kg}{m^3}}$	$kg-m^{-3}$	-
$MP$	-	melting point	$F$	$C$	$x+273.15\;K$
$Z_w$	-	metal removal rate	$\large{\frac{ft^3}{min}}$	$\large{\frac{m^3}{s}}$	$m^3-s^{-1}$	-
$m$	-	midordinate	-	-	-	-
$I_{min}$	-	minimum moment of inertia of $I_x$ and $I_y$	$in^4$	$mm^4$	$mm^4$	-
$h_{l-minor}$	-	minor head loss	$ft$	$m$	$m$	-
$K$	-	minor loss coefficient	dimensionless	dimensionless	dimensionless	-
$K$	-	mixing factor	-	-	-	-
$\mu$, $\;\mu_n$, $\;\mu_p$	mu	mobility	-	-	-	-
$b$	-	mobility ratio	-	-	-	-
$C_m$	-	modification factor for combined stress in steel design	-	-	-	-
$\lambda$, $\;E$	lambda	modulus of elasticity	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$E_c$	-	modulus of elasticity of concrete	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$E_s$	-	modulus of elasticity of steel	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$E$	-	modulus of elasticity earthquake load for LRFD design	$\large{\frac{lbf}{in^2}}$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$U_r$	-	modulus of resilience	$lbf\;/\;in^2$	$Pa$	$kg-m^{-1}-s^{-2}$	-
$G$, $\;\mu$	mu	modulus of rigidity	$\large{\frac{lbf}{in^2}}$	$Pa$	$N-$kg-m^{-1}-s^{-2}$^{-2}$	-
$G$	-	modulus of torsional	-	-	-	-
$U_t$	-	modulus of toughness	-	-	-	-
$n$	-	modular ratio	dimensionless	dimensionless	dimensionless	-
$m$	-	module	-	-	-	-
$MC$	-	moisture content	dimensionless	dimensionless	dimensionless	-
$\gamma_m$	gamma	moisture unit weight	$\large{ \frac{lbm}{ft^3} }$	$\large{ \frac{N}{m^3} }$	$N-m^{-3}$	-
$M$	-	molar concentration	$\large{\frac{lbmol}{ft^3}}$	$\large{\frac{kmol}{m^3}}$	$kmol-m^{-3}$	-
$H$	-	molar enthalpy	$\large{\frac{Btu}{lbmol}}$	$\large{\frac{kJ}{kmol}}$	$kJ-kmol^{-1}$	-
$S$	-	molar entropy	$\large{\frac{Btu}{lbmol-R}}\|$	$\large{\frac{kJ}{kmol-K}}$	$kJ-kmol^{-1}-K^{-1}$	-
$x$	-	molar fraction	dimensionless	dimensionless	dimensionless	-
$M$	-	molar gas	$ft^3$	$m^3$	$m^3$	-
$R$	-	molar gas constant	$\large{ \frac{lbf-ft}{lbmol-R} }$	$\large{ \frac{J}{kmol-K} }$	$J-kmol^{-1}-K^{-1}$	$8.314\;462\;618\;153\;24$ $\large{ \frac{J}{kmol-K} }$
$c_m$	-	molar heat	$\large{\frac{Btu}{lbmol}}$	$\large{\frac{kJ}{kmol}}$	$kJ-kmol^{-1}$	-
$U$	-	molar internal energy	$\large{\frac{Btu}{lbmol}}$	$\large{\frac{kJ}{kmol}}$	$kJ-kmol^{-1}$	-
$M$	-	molar mass	$\large{\frac{lbm}{mol}}$	$\large{\frac{kg}{mol}}$	$kg-mol^{-1}$	$0.999\;999\;999\;65\;(30)\;x\;10^{-3}$ $\large{\frac{g}{mol}}$
$M_u$	-	molar mass constant	$\large{\frac{lbm}{mol}}$	$\large{\frac{kg}{mol}}$	$kg-mol^{-1}$	$0.999\;999\;999\;65\;(30)\;x\;10^{-3}$ $\large{\frac{g}{mol^{-1}}}$
$M(^12 C)$	-	molar mass of carbon-12	$\large{\frac{lbm}{mol}}$	$\large{\frac{kg}{mol}}$	$kg-mol^{-1}$	$11.999\;999\;9958 x 10^{-3}$ $\large{\frac{g}{mol^{-1}}}$
$M$	-	molar mass of gas	$\large{\frac{lbm}{mol}}$	$\large{\frac{kg}{mol}}$	$kg-mol^{-1}$	-
$N_a h$	-	molar Planck constant	$\large{\frac{lbf-ft}{sec}}$	$J-s$	$kg-m^2-s^{-1}$	$6.626\;070\;15...\;x\;10^{-34}$ $J-s$
$r$	-	molar ratio of solution	-	-	-	-
$C$		molar specific heat	$\large{\frac{Btu}{lbmol-F}}$	$\large{\frac{kJ}{kmol-K}}$	$kJ-kmol^{-1}-K^{-1}$	-
$V$	-	molar specific volume	$\large{\frac{ft^3}{lbmol}}$	$\large{\frac{m^3}{kmol}}$	$m^3-kmol^{-1}$	-
$V_m$	-	molar volume	$\large{\frac{ft^3}{mol}}$	$\large{\frac{m^3}{mol}}$	$m^3-mol^{-1}$	-
$V_m$	-	molar volume of ideal gas	$\large{\frac{ft^3}{mol}}$	$\large{\frac{m^3}{mol}}$	$m^3-mol^{-1}$	$0.022\;413\;969\;545\;014...$ $\large{\frac{m^3}{mol}}$ at $0\;C$
$M$	-	molarity	$\large{\frac{mol}{gal}}$	$\large{\frac{mol}{L}}$	$mol-L^{-1}$	-
$m$	-	molarity of solution	-	-	-	-
$n$	-	mole	$mol$	$mol$	$mol$	$6.022\;140\;76\;x\;10^{23}$ $mol$
$\chi $	chi	mole fraction	dimensionless	dimensionless	dimensionless	-
$n$	-	moles of solution	$mol$	$mol$	$mol$	-
$MW$	-	molecular weight	$\large{\frac{lbm}{lbmol}}$	$\large{\frac{kg}{kmol}}$	$kg-kmol^{-1}$	-
$M$	-	moment	$\large{\frac{lbf}{sec}}$	$\large{\frac{kg-m}{s}}$	$kg-m-s^{-1}$	-
$M$	-	moment about the neuteal axis	$\large{\frac{lbf}{sec}}$	$\large{\frac{kg-m}{s}}$	$kg-m-s^{-1}$	-
$M$	-	moment of force	$lbf-ft$	$N-m$	$kg-m^2-s^{-2}$	-
$I$, $\;J$	-	moment of inertia	$\large{\frac{lbm}{ft^2-sec}}$	$\large{\frac{kg}{m^2}}$	$kg-m^{-2}$	-
$I_{cm}$	-	moment of inertia center of mass	$\large{\frac{lbm}{ft^2-sec}}$	$\large{\frac{kg}{m^2}}$	$kg-m^{-2}$	-
$I_c$, $\;\overline{I}$	-	moment of inertia about the centroid	$\large{\frac{lbm}{ft^2-sec}}$	$\large{\frac{kg}{m^2}}$	$kg-m^{-2}$	-
$I_x$	-	moment of inertia with respect to an x-axis	$\large{\frac{lbm}{ft^2-sec}}$	$\large{\frac{kg}{m^2}}$	$kg-m^{-2}$	-
$I_y$	-	moment of inertia with respect to an y-axis	$\large{\frac{lbm}{ft^2-sec}}$	$\large{\frac{kg}{m^2}}$	$kg-m^{-2}$	-
$p$	-	momentum	$\large{\frac{lbm-ft}{sec}}$	$\large{\frac{kg-m}{s}}$	$kg-m-s^{-1}$	-
$p$	-	momentum change in velocity	$\large{\frac{lbm-ft}{sec}}$	$\large{\frac{kg-m}{s}}$	$kg-m-s^{-1}$	-
$\Delta p$	-	momentum differential	$\large{\frac{lbm-ft}{sec}}$	$\large{\frac{kg-m}{s}}$	$kg-m-s^{-1}$	-
$I$	-	moment of inertia of a circle	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a cube	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a cylinder	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a mass	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a quarter circle	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a rectangle	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a semicircle	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a sphere	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a thin rod	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a triangle	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a annulus	$in^4$	$mm^4$	$mm^4$	-
$I$	-	moment of inertia of a ellipse	$in^4$	$mm^4$	$mm^4$	-
$M$	-	moment of mass	$\large{\frac{lbm-ft}{sec}}$	$\large{\frac{kg-m}{s}}$	$kg-m-s^{-1}$	-
$Mo$	-	Morton number	dimensionless	dimensionless	dimensionless	-
$m$	-	motion	$ft$	$m$	$m$	-
$\eta_m$	eta	motor efficiency	dimensionless	dimensionless	dimensionless	-
$MHP$, $HP_m$	-	motor horsepower	$\large{\frac{lbf-ft}{sec}}$	$\large{\frac{Btu}{s}}$	$Btu-s^{-1}$	-
$M$	-	mutual inductance	-	-	-	-
Symbol	Greek Symbol	Definition	English	Metric	SI	Value

Piping Designer Logo Slide 1

"M" Formula Symbols 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
Symbol	Greek Symbol	Definition	English	Metric	SI	Value
\(Ma\)	-	Mach number	dimensionless	dimensionless	dimensionless	-
\(Mi\)	-	Machinability index	dimensionless	dimensionless	dimensionless	-
\(\Sigma\)	Sigma	macroscopic cross section	-	-	-	-
\(M\), \(\;m_i\)	-	magnetic	-	-	-	-
\(\mu_o\)	mu	magnetic constant	\(\large{\frac{H}{ft}}\)	\(\large{\frac{H}{m}}\)	\(H-m^{-1}\)	\(1.2566\;x\;10^{-6}\) \(\large{\frac{H}{m}}\)
\(n_m\), \(\;\nu_m\)	nu	magnetic diffusivity	\(\large{\frac{ft^2}{sec}}\)	\(\large{\frac{m^2}{s}}\)	\(m^2-s^{-1}\)	-
\(m\), \(\;\mu\)	mu	magnetic dipole moment	-	-	-	-
\(B\)	-	magnetic field	\(T\)	\(T\)	\(kg-s^{-2}-A^{-1}\)	-
\(H\), \(\;\vec{H}\)	-	magnetic field strength	\(\large{\frac{A}{ft}}\)	\(\large{\frac{A}{m}}\)	\(A-m^{-1}\)	-
\(\phi_B\), \(\;\phi_m\)	phi	magnetic flux	\(\large{\frac{Wb}{in^2}}\)	\(\large{\frac{Wb}{mm^2}}\)	\(Wb-mm^{-2}\)	-
\(B\)	-	magnetic flux density	\(\large{\frac{Wb}{ft^2}}\)	\(\large{\frac{Wb}{m^2}}\)	\(Wb-m^{-2}\)	-
\(\Phi_o\)	Phi	magnetic flux quantum	\(\large{\frac{V}{sec}}\)	\(Wb\)	\(kg-m^2-s^{-2}-A^{-1}\)	\(2.067\;833\;758\;x\;10^{-15}\) \(Wb\)
\(F_m\)	-	magnetic force	\(\large{\frac{lbm-ft}{sec^2}}\)	\(N\)	\(kg-m-s^{-2}\)	-
\(F_m\)	-	magnetic force between parallel conductors	\(\large{\frac{lbm-ft}{sec^2}}\)	\(N\)	\(kg-m-s^{-2}\)	-
\(B\), \(\;\vec{B}\)	-	magnetic induction	\(T\)	\(T\)	\(kg-s^{-2}-A^{-1}\)	-
\(\mu\)	mu	magnetic moment of a particle	-	-	-	-
\(\mu\)	mu	magnetic permeability	\(\large{\frac{H}{ft}}\)	\(\large{\frac{H}{m}}\)	\(H-m^{-1}\)	-
\(\mu_0\)	mu	magnetic permeability vacuum	-	\(\large{\frac{N}{A^2}}\)	\(N-A^{-2}\)	\(1.256\;637\;0614\;x\;10^{-6}\) \(\large{\frac{N}{A^2}}\)
\(U_m\)	-	magnetic potential difference	-	-	-	-
\(p_m\)	-	magnetic pressure	\(\large{\frac{lbm}{ft-sec^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(\beta\)	beta	magnetic pressure ratio	dimensionless	dimensionless	dimensionless	-
\(R_m\)	-	Magnetic Reynolds number	dimensionless	dimensionless	dimensionless	-
\(X\)	-	magnetic susceptibility	-	-	-	-
\(A\)	-	magnetic vector potential	-	-	-	-
\(F_m\)	-	magnetomotive force	-	-	-	-
\(M\)	-	magnetization	-	-	-	-
\(M\)	-	magnification	-	-	-	-
\(MF\)		magnification factor	-	-	-	-
\(h_{l-major}\)	-	major head loss	\(ft\)	\(m\)	\(m\)	-
\(v\)	-	Manning equation	-	-	-	-
\(n\)	-	Manning friction coefficient	-	-	-	-
\(n\)	-	Manning's roughness coefficient	dimensionless	dimensionless	dimensionless	-
\(Ma\)	-	Marangoni number	dimensionless	dimensionless	dimensionless	-
\(MS\), \(MOS\)	-	margin of safety	dimensionless	dimensionless	dimensionless	-
\(M\)	-	Markstein number	dimensionless	dimensionless	dimensionless	-
\(m\)	-	mass	\(lbm\)	\(kg\)	\(kg\)	-
\(M\)	-	mass scale	-	-	-	-
\(\mu_m\)	mu	mass attenuation coefficient	-	-	-	-
\(\dot {m}_c\)	-	mass condensation rate	-	-	-	-
\(c\)	-	mass consentration	\(lbm\)	\(kg\)	\(kg\)	-
\(\rho \)	rho	mass density	\(\large{\frac{lbm}{ft^3}}\)	\(\large{\frac{kg}{m^3}}\)	\(kg-m^{-3}\)	-
\(D\), \(\;D_m\)	-	mass diffusivity	\(\large{\frac{ft^3}{sec}}\)	\(\large{\frac{m^3}{s}}\)	\(m^3-s^{-1}\)	-
\(\Delta\)	Delta	mass excess	-	-	-	-
\(\dot {m}_f\)	-	mass flow rate	\(\large{\frac{lbm}{sec}}\)	\(\large{\frac{kg}{s}}\)	\(kg-s^{-1}\)	-
\(B\), \(\;\Gamma\)	Gamma	mass flow rate per unit area	\(\large{\frac{lbm}{ft^2-sec}}\)	\(\large{\frac{kg}{m^2-s}}\)	\(kg-m^{-2}-s^{-1}\)	-
\(w\)	-	mass fraction	-	-	-	-
\(m\), \(\;\dot {m}\)	-	mass leak rate	\(\large{\frac{lbm}{sec}}\)	\(\large{\frac{kg}{s}}\)	\(kg-s^{-1}\)	-
\(M\), \(\;\vec{M}\)	-	mass magnetization	\(\large{\frac{A-ft^2}{lbm}}\)	\(\large{\frac{A-m^2}{kg}}\)	\(A-m^2-kg^{-1}\)	-
\(I\)	-	mass moments of inertia	\(lbm-ft^2\)	\(kg-m^2\)	\(kg-m^2\)	-
\(A\)	-	mass number	-	-	-	-
\(m_da\)	-	mass of dry air	\(lbm\)	\(kg\)	\(kg\)	-
\(m_ds\)	-	mass of dry soil	\(lbm\)	\(kg\)	\(kg\)	-
\(m_e\)	-	mass of earth	\(lbm\)	\(kg\)	\(kg\)	-
\(m_l\)	-	mass of liquid	\(lbm\)	\(kg\)	\(kg\)	-
\(\mu\)	mu	mass of molecule	\(\large{\frac{oz}{mol}}\)	\(\large{\frac{g}{mol}}\)	\(g-mol^{-1}\)	-
\(m_s\)	-	mass of solid	\(lbm\)	\(kg\)	\(kg\)	-
\(m_w\)	-	mass of water	\(lbm\)	\(kg\)	\(kg\)	-
\(m_wv\)	-	mass of water vapor	\(lbm\)	\(kg\)	\(kg\)	-
\(K\), \(\;k\)	-	mass transfer coefficient	dimensionless	dimensionless	dimensionless	-
\(\dot {m}_t\)	-	mass transfer rate	\(\large{\frac{lbm}{sec}}\)	\(\large{\frac{kg}{s}}\)	\(kg-s^{-1}\)	-
\(G\)	-	mass velocity	-	-	-	-
\(J\)	-	Massieu function	-	-	-	-
\(D\)	-	material density	\(\large{\frac{lbm}{ft^3}}\)	\(\large{\frac{kg}{m^3}}\)	\(kg-m^{-3}\)	-
\(K_{cE}\)	-	material factor for wood column design	-	-	-	-
\(S_f\)	-	maximum allowable stress	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(S\)	-	maximum allowable tensile stress	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(M\)	-	maximum bending moment	\(lbf-in\)	\(N-mm\)	\(N-mm\)	-
\(\Delta_{max}\)	Delta	maximum calculated beam deflection	\(in\)	\(mm\)	\(mm\)	-
\(h_{max}\)	-	maximum height of a projectile	\(ft\)	\(m\)	\(m\)	-
\(P_{max}\)		maximum load	-	-	-	-
\(M_u\)	-	maximum moment from factored loads for LRFD beam design	\(lbf-ft\)	\(N-m\)	\(kg-m^2-s^{-2}\)	-
\(V\)	-	maximum shear force	\(lbf\)	\(N\)	\(kg-m-s^{-2}\)	-
\(\tau\)	tau	maximum shear stress	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(S\)	-	maximum soil moisture retention after runoff begins	-	-	-	-
\(H_{sp}\)	-	maximum surge pressure head in a length of pipe	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(P_{spf}\)	-	maximum surge pressure for a fluid	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(m\), \(\;\mu\)	mu	mean	-	-	-	-
\(D\)	-	mean coil diameter	\(in\)	\(mm\)	\(mm\)	-
\(h_m\)	-	mean depth	\(in\)	\(mm\)	\(mm\)	-
\(MEP\)	-	mean effective pressure	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(v\)	-	mean flow velocity	-	-	-	-
\(l\), \(\;\lambda\)	lambda	mean free path	\(ft\) or \(in\)	\(m\) or \(mm\)	\(m\) or \(mm\)	-
\(\tau\), \(\;\tau_m\)	tau	mean life	-	-	-	-
\(E_cm\)	-	mean modulus of elasticity of concrete	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(E_cm28\)	-	mean modulus of elasticity of concrete at 28 days	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(E_cmt\)	-	mean modulus of elasticity of concrete at age t	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(E_cmto\)	-	mean modulus of elasticity of concrete when loading starts at age t_o	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(v_m\)	-	mean velocity	\(\large{\frac{ft}{sec}}\)	\(\large{\frac{m}{s}}\)	\(m-s^{-1}\)	-
\(h\)	-	mean water depth	\(ft\)	\(m\)	\(m\)	-
\(M\)	-	mechanical advantage	dimensionless	dimensionless	dimensionless	-
\(ME\)	-	mechanical efficiency	dimensionless	dimensionless	dimensionless	-
\(ME\)	-	mechanical energy	\(lbf-ft\)	\(J\)	\(kg-m^2-s^{-2}\)	-
\(W\)	-	mechanical work	-	-	-	-
\(\rho_m\)	rho	media density	\(\large{\frac{lbm}{ft^3}}\)	\(\large{\frac{kg}{m^3}}\)	\(kg-m^{-3}\)	-
\(MP\)	-	melting point	\(F\)	\(C\)	\(x+273.15\;K\)
\(Z_w\)	-	metal removal rate	\(\large{\frac{ft^3}{min}}\)	\(\large{\frac{m^3}{s}}\)	\(m^3-s^{-1}\)	-
\(m\)	-	midordinate	-	-	-	-
\(I_{min}\)	-	minimum moment of inertia of \(I_x\) and \(I_y\)	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(h_{l-minor}\)	-	minor head loss	\(ft\)	\(m\)	\(m\)	-
\(K\)	-	minor loss coefficient	dimensionless	dimensionless	dimensionless	-
\(K\)	-	mixing factor	-	-	-	-
\(\mu\), \(\;\mu_n\), \(\;\mu_p\)	mu	mobility	-	-	-	-
\(b\)	-	mobility ratio	-	-	-	-
\(C_m\)	-	modification factor for combined stress in steel design	-	-	-	-
\(\lambda\), \(\;E\)	lambda	modulus of elasticity	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(E_c\)	-	modulus of elasticity of concrete	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(E_s\)	-	modulus of elasticity of steel	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(E\)	-	modulus of elasticity earthquake load for LRFD design	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(U_r\)	-	modulus of resilience	\(lbf\;/\;in^2\)	\(Pa\)	\(kg-m^{-1}-s^{-2}\)	-
\(G\), \(\;\mu\)	mu	modulus of rigidity	\(\large{\frac{lbf}{in^2}}\)	\(Pa\)	$N-\(kg-m^{-1}-s^{-2}\)^{-2}$	-
\(G\)	-	modulus of torsional	-	-	-	-
\(U_t\)	-	modulus of toughness	-	-	-	-
\(n\)	-	modular ratio	dimensionless	dimensionless	dimensionless	-
\(m\)	-	module	-	-	-	-
\(MC\)	-	moisture content	dimensionless	dimensionless	dimensionless	-
\(\gamma_m\)	gamma	moisture unit weight	\(\large{ \frac{lbm}{ft^3} }\)	\(\large{ \frac{N}{m^3} }\)	\(N-m^{-3}\)	-
\(M\)	-	molar concentration	\(\large{\frac{lbmol}{ft^3}}\)	\(\large{\frac{kmol}{m^3}}\)	\(kmol-m^{-3}\)	-
\(H\)	-	molar enthalpy	\(\large{\frac{Btu}{lbmol}}\)	\(\large{\frac{kJ}{kmol}}\)	\(kJ-kmol^{-1}\)	-
\(S\)	-	molar entropy	\(\large{\frac{Btu}{lbmol-R}}\|\)	\(\large{\frac{kJ}{kmol-K}}\)	\(kJ-kmol^{-1}-K^{-1}\)	-
\(x\)	-	molar fraction	dimensionless	dimensionless	dimensionless	-
\(M\)	-	molar gas	\(ft^3\)	\(m^3\)	\(m^3\)	-
\(R\)	-	molar gas constant	\(\large{ \frac{lbf-ft}{lbmol-R} }\)	\(\large{ \frac{J}{kmol-K} }\)	\(J-kmol^{-1}-K^{-1}\)	\(8.314\;462\;618\;153\;24\) \(\large{ \frac{J}{kmol-K} }\)
\(c_m\)	-	molar heat	\(\large{\frac{Btu}{lbmol}}\)	\(\large{\frac{kJ}{kmol}}\)	\(kJ-kmol^{-1}\)	-
\(U\)	-	molar internal energy	\(\large{\frac{Btu}{lbmol}}\)	\(\large{\frac{kJ}{kmol}}\)	\(kJ-kmol^{-1}\)	-
\(M\)	-	molar mass	\(\large{\frac{lbm}{mol}}\)	\(\large{\frac{kg}{mol}}\)	\(kg-mol^{-1}\)	\(0.999\;999\;999\;65\;(30)\;x\;10^{-3}\) \(\large{\frac{g}{mol}}\)
\(M_u\)	-	molar mass constant	\(\large{\frac{lbm}{mol}}\)	\(\large{\frac{kg}{mol}}\)	\(kg-mol^{-1}\)	\(0.999\;999\;999\;65\;(30)\;x\;10^{-3}\) \(\large{\frac{g}{mol^{-1}}}\)
\(M(^12 C)\)	-	molar mass of carbon-12	\(\large{\frac{lbm}{mol}}\)	\(\large{\frac{kg}{mol}}\)	\(kg-mol^{-1}\)	\(11.999\;999\;9958 x 10^{-3}\) \(\large{\frac{g}{mol^{-1}}}\)
\(M\)	-	molar mass of gas	\(\large{\frac{lbm}{mol}}\)	\(\large{\frac{kg}{mol}}\)	\(kg-mol^{-1}\)	-
\(N_a h\)	-	molar Planck constant	\(\large{\frac{lbf-ft}{sec}}\)	\(J-s\)	\(kg-m^2-s^{-1}\)	\(6.626\;070\;15...\;x\;10^{-34}\) \(J-s\)
\(r\)	-	molar ratio of solution	-	-	-	-
\(C\)		molar specific heat	\(\large{\frac{Btu}{lbmol-F}}\)	\(\large{\frac{kJ}{kmol-K}}\)	\(kJ-kmol^{-1}-K^{-1}\)	-
\(V\)	-	molar specific volume	\(\large{\frac{ft^3}{lbmol}}\)	\(\large{\frac{m^3}{kmol}}\)	\(m^3-kmol^{-1}\)	-
\(V_m\)	-	molar volume	\(\large{\frac{ft^3}{mol}}\)	\(\large{\frac{m^3}{mol}}\)	\(m^3-mol^{-1}\)	-
\(V_m\)	-	molar volume of ideal gas	\(\large{\frac{ft^3}{mol}}\)	\(\large{\frac{m^3}{mol}}\)	\(m^3-mol^{-1}\)	\(0.022\;413\;969\;545\;014...\) \(\large{\frac{m^3}{mol}}\) at \(0\;C\)
\(M\)	-	molarity	\(\large{\frac{mol}{gal}}\)	\(\large{\frac{mol}{L}}\)	\(mol-L^{-1}\)	-
\(m\)	-	molarity of solution	-	-	-	-
\(n\)	-	mole	\(mol\)	\(mol\)	\(mol\)	\(6.022\;140\;76\;x\;10^{23}\) \(mol\)
\(\chi \)	chi	mole fraction	dimensionless	dimensionless	dimensionless	-
\(n\)	-	moles of solution	\(mol\)	\(mol\)	\(mol\)	-
\(MW\)	-	molecular weight	\(\large{\frac{lbm}{lbmol}}\)	\(\large{\frac{kg}{kmol}}\)	\(kg-kmol^{-1}\)	-
\(M\)	-	moment	\(\large{\frac{lbf}{sec}}\)	\(\large{\frac{kg-m}{s}}\)	\(kg-m-s^{-1}\)	-
\(M\)	-	moment about the neuteal axis	\(\large{\frac{lbf}{sec}}\)	\(\large{\frac{kg-m}{s}}\)	\(kg-m-s^{-1}\)	-
\(M\)	-	moment of force	\(lbf-ft\)	\(N-m\)	\(kg-m^2-s^{-2}\)	-
\(I\), \(\;J\)	-	moment of inertia	\(\large{\frac{lbm}{ft^2-sec}}\)	\(\large{\frac{kg}{m^2}}\)	\(kg-m^{-2}\)	-
\(I_{cm}\)	-	moment of inertia center of mass	\(\large{\frac{lbm}{ft^2-sec}}\)	\(\large{\frac{kg}{m^2}}\)	\(kg-m^{-2}\)	-
\(I_c\), \(\;\overline{I}\)	-	moment of inertia about the centroid	\(\large{\frac{lbm}{ft^2-sec}}\)	\(\large{\frac{kg}{m^2}}\)	\(kg-m^{-2}\)	-
\(I_x\)	-	moment of inertia with respect to an x-axis	\(\large{\frac{lbm}{ft^2-sec}}\)	\(\large{\frac{kg}{m^2}}\)	\(kg-m^{-2}\)	-
\(I_y\)	-	moment of inertia with respect to an y-axis	\(\large{\frac{lbm}{ft^2-sec}}\)	\(\large{\frac{kg}{m^2}}\)	\(kg-m^{-2}\)	-
\(p\)	-	momentum	\(\large{\frac{lbm-ft}{sec}}\)	\(\large{\frac{kg-m}{s}}\)	\(kg-m-s^{-1}\)	-
\(p\)	-	momentum change in velocity	\(\large{\frac{lbm-ft}{sec}}\)	\(\large{\frac{kg-m}{s}}\)	\(kg-m-s^{-1}\)	-
\(\Delta p\)	-	momentum differential	\(\large{\frac{lbm-ft}{sec}}\)	\(\large{\frac{kg-m}{s}}\)	\(kg-m-s^{-1}\)	-
\(I\)	-	moment of inertia of a circle	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a cube	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a cylinder	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a mass	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a quarter circle	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a rectangle	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a semicircle	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a sphere	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a thin rod	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a triangle	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a annulus	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(I\)	-	moment of inertia of a ellipse	\(in^4\)	\(mm^4\)	\(mm^4\)	-
\(M\)	-	moment of mass	\(\large{\frac{lbm-ft}{sec}}\)	\(\large{\frac{kg-m}{s}}\)	\(kg-m-s^{-1}\)	-
\(Mo\)	-	Morton number	dimensionless	dimensionless	dimensionless	-
\(m\)	-	motion	\(ft\)	\(m\)	\(m\)	-
\(\eta_m\)	eta	motor efficiency	dimensionless	dimensionless	dimensionless	-
\(MHP\), \(HP_m\)	-	motor horsepower	\(\large{\frac{lbf-ft}{sec}}\)	\(\large{\frac{Btu}{s}}\)	\(Btu-s^{-1}\)	-
\(M\)	-	mutual inductance	-	-	-	-
Symbol	Greek Symbol	Definition	English	Metric	SI	Value

Mathematics and Management Rules and Symbols

"M" Formula Symbols

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