Some symbols in engineering and alphabets are submitted below table.
| Name | Capital | Lower case | Examples of use |
| alpha | A | α | Angles, angular acceleration, various coefficients |
| beta | B | β | Angles, coefficients |
| gamma | Γ | γ | Shear strain, surface tension, kinematic viscosity |
| delta | Δ | δ | Differences, damping coefficient |
| epsilon | E | ε | Linear strain |
| zeta | Z | ζ | |
| eta | H | η | Dynamic viscosity, efficiency |
| theta | Θ | θ | Angles, temperature, volume strain |
| iota | I | ι | |
| kappa | K | κ | Compressibility |
| lambda | Λ | λ | Wavelength, thermal conductivity |
| mu | M | μ | Poisson’s ratio, coefficient of friction |
| nu | N | ν | Dynamic viscosity |
| xi | Ξ | ξ | |
| omicron | O | ο | |
| pi | Π | π | Mathematical constant |
| rho | P | ρ | Density |
| sigma | Σ | σ | Normal stress, standard deviation, sum of |
| tau | T | τ | Shear stress |
| upsilon | Y | υ | |
| phi | Φ | φ | Angles, heat flow rate, potential energy |
| chi | Χ | χ | |
| psi | ψ | ψ | Helix angle (gears) |
| omega | Ω | ω | Angular velocity, solid angle (m) electrical resistance (ii) |
| → | Approaches | ||
| lal | Magnitude of a | ||
| √a | Square root of a | ||
| ∑ | Sum | ||
| a! | Factorial a | ||
| ∏ | Product | ||
| i,j | Complex operator | ||
| Im z | Imaginary part of z | ||
| arg z | Argument of z | ||
| Re z | Real part of z | ||
| lzl | Modulus of z | ||
| f(x) | Function of x | ||
| arcsin x | Inverse sine of x | ||
| arccos x | Inverse cosine of x | ||
| arctan x | Inverse tangent of x | ||
| arcsec x | Inverse secant of x | ||
| arccosec x | Inverse cosecant of x | ||
| arccot x | Inverse cotangent of x | ||
| arsinh x | Inverse hyperbolic sine of x | ||
| arcosh x | Inverse hyperbolic cosine of x | ||
| artanh x | Inverse hyperbolic tangent of x | ||
| arcosech x | Inverse hyperbolic cosecant of x | ||
| arsech x | Inverse hyperbolic secant of x | ||
| arcoth x | Inverse hyperbolic cotangent of x | ||
| A | Vector | ||
| |A|, A | Magnitude of vector A | ||
| A • B | Scalar products of vectors A and B | ||
| A X B,
A ∧ B |
Vector products of vectors A and B |

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