Greek letters commonly used to present

Mechanical Engineering quantities

LowercaseCapitalPronunciationapplication

alphaangle presentation, angular acceleration

coefficient of thermal

expansion

betaangle presentation

gammaspecific weight, Shear strain

deltasmall change or difference(

Change or difference (

epsilonroughness, permittivity,

Strain, or true strain

etaefficiency, dynamic viscosity

thetaangle presentation, angular displacement

lambdawavelength,

mucoefficient of friction,

Poisson’s Ratio,

dynamic viscosity, permeability

prefix micro(10-6)

nukinematic viscosity

pi3.1416

rhodensity, resistivity

sigmanormal stress (

Summation ()

taushear stress

phiangle presentation(,

magnetic flux(

psiwave function

omegaangular velocity ()

Ohm ()

Note: Generally, Greek letters are used in lower case format to present physical

quantities.

Use table below to type Greek letters

English
Letter font / 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
font /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  / 
English
Letter font / 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
font /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  /  / 

(alpha)beta)(chi)(delta)(epsilon)(phi) (gamma)

(eta)(iota)(…)(kappa)(lambda)(mu) (nu)

(omicron)pi)(theta)(rho)(sigma)(tau) (upsilon)

(….)omega)(xi)(psi)(zeta)