Signs and Symbols
263
ELECTRICAL— Con.
- ρ resistivity; rho
- Λ equivalent conductivity
- HP horsepower
MATHEMATICAL
- ̅ vinculum (above letters)
- ∺ geometrical proportion
- ∹ difference, excess
- ∥ parallel
- ∥s parallels
- ∦ not parallels
- | | absolute value
- ∙ multiplied by
- ∶ is to; ratio
- ÷ divided by
- ∴ therefore; hence
- ∵ because
- ∷ proportion; as
- ≪ is dominated by
- > greater than
- ⫍ greater than
- ≥ greater than or equal to
- ≧ greater than or equal to
- ≷ greater than or less than
- ≯ is not greater than
- < less than
- ⫎ less than
- ≶ less than or greater than
- ≮ is not less than
- ⪪ smaller than
- ≤ less than or equal to
- ≦ less than or equal to
- ≧ or ≥ greater than or equal to
- ⋜ equal to or less than
- ⪙ equal to or less than
- ⪚ is not greater than equal to or less than
- ⋝ equal to or greater than
- ⪚ is not less than equal to or greater than
- ⫨ equilateral
- ⊥ perpendicular to
- ⊢ assertion sign
- ≐ approaches
- ≐ approaches a limit
- ≚ equal angles
- ≠ not equal to
- ≡ identical with
- ≢ not identical with
score- ≈ or ≒ nearly equal to
- = equal to
- ~ difference
- ≃ perspective to
- ≅ congruent to approximately equal
- ≏ difference between
- ≎ geometrically equivalent to
- ( included in
- ) excluded from
- ⊂ is contained in
- ∪ logical sum or union
- ∩ logical product or intersection
- √ radical
- √ root
- square root
- cube root
- fourth root
- fifth root
- sixth root
- π pi
- ϵ base (2.718) of natural system of logarithms; epsilon
- ∈ is a member of; dielectric constant; mean error; epsilon
- + plus
- ➕ bold plus
- − minus
- ➖ bold minus
- / shill(ing); slash; virgule
- ± plus or minus
- ∓ minus or plus
- × multiplied by
- = bold equal
- # number
- ⅌ per
- % percent
- ∫ integral
- | single bond
- \ single bond
- / single bond
- || double bond
- \\ double bond
- // double bond
- ⌬ benzene ring
- ∂ or δ differential; variation
- ∂ Italian differential
- → approaches limit of
- ∿ cycle sine
- ∫ horizontal integral
- ∮ contour integral
- ∝ variation; varies as
- ∏ product
- ∑ summation of; sum; sigma
- ! or ∟ factorial product
![{\displaystyle {\sqrt[{2}]{}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/b9104dc5bd4be0808015f336db4f201b4cefd315)
![{\displaystyle {\sqrt[{3}]{}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/8e7fcb4f3c42dd8748d4012549cc9deb29615a2f)
![{\displaystyle {\sqrt[{4}]{}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/ef063fe7a70b659e20ec34700cbc12ab2e4511eb)
![{\displaystyle {\sqrt[{5}]{}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/8e97a324789cb01dd50fb8d2a3c41c34a487060e)
![{\displaystyle {\sqrt[{6}]{}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/14ae4c5c714410efc7a2a0e11b690c60ec7ce676)
MEASURE
- ℔ pound
- ʒ dram
- ƒʒ fluid dram
- ℥ ounce
- ƒ℥ fluid ounce
- O pint
MISCELLANEOUS
- § section
- † dagger
- ‡ double dagger
- ℀ account of
- ℅ care of
- score
- ¶ paragraph
- þ Anglo-Saxon
- ℄ center line
- ☌ conjunction
- ⊥ perpendicular to
- " or “ ditto
- ∝ variation
- ℞ recipe
- ⊏ move right
- ⊐ move left
- ○ or ⊙ or ① annual
- ⊙⊙ or ② biennial
- ∈ element of
- ℈ scruple
- ƒ function
- ! exclamation mark
- ⊞ plus in square
- ♃ perennial
