These can be used to cut and paste in blogger for blog posts:

α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς σ τ υ φ χ ψ ω . . . . . Γ Δ Θ Λ Ξ Π Σ Φ Ψ Ω

∂ ∫ ∏ ∑ . . . . . ← → ↓ ↑ ↔ . . . . . ± − · × ÷ √ . . . . . ¼ ½ ¾ ⅛ ⅜ ⅝ ⅞

∞ ° ² ³ ⁿ Å . . . . . ~ ≈ ≠ ≡ ≤ ≥ « » . . . . . † ‼

More:

Source: http://xahlee.blogspot.com/2010/06/math-symbols-in-unicode.html

Some Greeks: α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ ς τ υ φ χ ψ ω

superscript: ⁰ ⁱ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁺ ⁻ ⁼ ⁽ ⁾ ⁿ

subscript: ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₊ ₋ ₌ ₍ ₎ ₐ ₑ ₒ ₓ ₔ

Roots: √ ∛ ∜

Sets: ℕ ℤ ℚ ℝ ℂ

Constants: ℯ ℵ ⅇ ⅈ ⅉ ∅ ∞ ⧜ ⧝ ⧞

Basic binary operators: × ÷ ⊕ ⊖ ⊗ ⊘ ⊙ ⊚ ⊛ ⊜ ⊝ ⊞ ⊟ ⊠ ⊡ − ∕ ∗ ∘ ∙ ⋅ ⋆

Sets

element of: ∈ ∋ ∉ ∌ ⋶ ⋽ ⋲ ⋺ ⋳ ⋻

misc: ∊ ∍ ⋷ ⋾ ⋴ ⋼ ⋵ ⋸ ⋹ ⫙ ⟒

binary relation of sets: ⊂ ⊃ ⊆ ⊇ ⊈ ⊉ ⊊ ⊋ ⊄ ⊅ ⫅ ⫆ ⫋ ⫌ ⫃ ⫄ ⫇ ⫈ ⫉ ⫊ ⟃ ⟄ ⫏ ⫐ ⫑ ⫒ ⫓ ⫔ ⫕ ⫖ ⫗ ⫘ ⋐ ⋑ ⟈ ⟉

Union: ∪ ⩁ ⩂ ⩅ ⩌ ⩏ ⩐

Intersection: ∩ ⩀ ⩃ ⩄ ⩍ ⩎

Binary operator on sets: ∖ ⩆ ⩇ ⩈ ⩉ ⩊ ⩋ ⪽ ⪾ ⪿ ⫀ ⫁ ⫂ ⋒ ⋓

N-nary operator on sets: ⋂ ⋃ ⊌ ⊍ ⊎

Joins: ⨝ ⟕ ⟖ ⟗

Order

Precede and succeed: ≺ ≻ ≼ ≽ ≾ ≿ ⊀ ⊁ ⋞ ⋟ ⋠ ⋡ ⋨ ⋩ ⪯ ⪰ ⪱ ⪲ ⪳ ⪴ ⪵ ⪶ ⪷ ⪸ ⪹ ⪺ ⪻ ⪼

less and greater: ≮ ≯ ≤ ≥ ≰ ≱ ⪇ ⪈ ≦ ≧ ≨ ≩

less and greater 2: ⋜ ⋝ ⪙ ⪚ ≶ ≷ ≸ ≹ ⋚ ⋛ ⪋ ⪌ ⪑ ⪒ ⪓ ⪔

with approx: ⪅ ⪆ ⪉ ⪊

less and greater with equivalence: ≲ ≳ ⋦ ⋧ ≴ ≵

less and greater with similarity: ⪝ ⪞ ⪟ ⪠ ⪍ ⪎ ⪏ ⪐

less and greater slanted: ⩽ ⩾ ⫹ ⫺ ⪕ ⪖ ⪛ ⪜

less and greater misc: ⪣ ⪤ ⪥ ⪦ ⪧ ⪨ ⪩ ⪪ ⪫ ⪬ ⪭ ⪮ ⪡ ⪢ ⫷ ⫸ ⩹ ⩺ ⩻ ⩼ ≬ ≪ ≫ ⋘ ⋙

Order relation with dot: ⋖ ⋗ ⩿ ⪀ ⪗ ⪘ ⪁ ⪂ ⪃ ⪄

Equality, Identity, Equivalence, Approx, Congruence

equality: ≝ ≞ ≟ ≠ ∹ ≎ ≏ ≐ ≑ ≒ ≓ ≔ ≕ ≖ ≗ ≘ ≙ ≚ ≛ ≜ ⩬ ⩭ ⩮ ⩱ ⩲ ⩦ ⩴ ⩵ ⩶ ⩷

Identity: ≡ ≢ ⩧

Equivalence: ≍ ≭ ≣ ⩸

Approx equality: ≁ ≂ ≃ ≄ ⋍ ≅ ≆ ≇ ≈ ≉ ≊ ≋ ≌ ⩯ ⩰

Misc equality: ∻

Misc relations: ⊏ ⊐ ⊑ ⊒ ⊓ ⊔ ⋢ ⋣ ⋤ ⋥ ⊲ ⊳ ⊴ ⊵ ⋪ ⋫ ⋬ ⋭ ⫴ ⫵

Logic

Logic: ¬ ⫬ ⫭ ⊨ ⊭ ∀ ∁ ∃ ∄ ∴ ∵ ⊦ ⊬ ⊧ ⊩ ⊮ ⊫ ⊯ ⊪ ⊰ ⊱

Logic binary: ∧ ∨ ⊻ ⊼ ⊽ ⋎ ⋏ ⟑ ⟇ ⩑ ⩒ ⩓ ⩔ ⩕ ⩖ ⩗ ⩘ ⩙ ⩚ ⩛ ⩜ ⩝ ⩞ ⩟ ⩠ ⩢ ⩣ ⨇ ⨈

Logic n-nary: ⋀ ⋁

n-nary operators: ∑ ⨀ ⨁ ⨂ ⨃ ⨄ ⨅ ⨆ ∏ ∐ ∔

Geometry

Geometry: ∣ ∤ ⫮ ⌅ ⌆ ℓ ⫛

Ratio and proportion: ∝ ∶ ∷ ∺

Parallel and perpendicular: ∥ ∦ ⫲ ⫳ ⋕ ⟂ ⫡

Right angle: ∟ ⊾ ⦜ ⦝ ⊿

Angles: ∠ ∡ ⦛ ⦞ ⦟ ⦢ ⦣ ⦤ ⦥ ⦦ ⦧ ⦨ ⦩ ⦪ ⦫ ⦬ ⦭ ⦮ ⦯ ⦓ ⦔ ⦕ ⦖ ⟀

Spherical angle: ∢ ⦠ ⦡

...

Pairs: ⌈ ⌉ ⌊ ⌋ ⦋ ⦌ ⟦ ⟧ ⦍ ⦎ ⦏ ⦐

pairs 2: ⟮ ⟯ ⟨ ⟩ ⟪ ⟫ ⦃ ⦄ ⦅ ⦆ ⦇ ⦈ ⦉ ⦊ ⟬ ⟭ ⦗ ⦘ ⦑ ⦒ ⧼ ⧽

integrals: ∫ ∬ ∭ ∮ ∯ ∰ ∱ ∲ ∳ ⨋ ⨌ ⨍ ⨎ ⨏ ⨐ ⨑ ⨒ ⨓ ⨔ ⨕ ⨖ ⨗ ⨘ ⨙ ⨚ ⨛ ⨜

Derivative: ∂ ′ ″ ‴ ∆

vector: ⨯ ∇ ⊹

Misc indicators: ∎ ± ∓ ⋮ ⋯ ⋰ ⋱

Misc symbols: ∿

Tacks: ⊣ ⊢ ⊥ ⊤ ⟘ ⟙ ⟛ ⟝ ⟞ ⟟ ⫧ ⫨ ⫩ ⫪ ⫫ ⫞ ⫟ ⫠

Turnstiles: ⫢ ⫣ ⫤ ⫥ ⟚

Z notation: ⦁ ⦂ ⩤ ⩥ ⨟ ⨠ ⨡ ⨾

Tilde Operators: ∼ ∽ ⩪ ⩫ ⩳

Misc Operators: ⋄ ⫶ ⫼ ⫾

Misc products: ≀ ⨿ ⨼ ⨽ ⧢ ⋉ ⋊ ⋋ ⋌

Plus variations: ⨢ ⨣ ⨤ ⨥ ⨦ ⨧ ⨨ ⨭ ⨮

Solidus: ⫻ ⫽

minus sign variations: ∸ ⨩ ⨪ ⨫ ⨬

maps: ⊶ ⊷ ⊸ ⟜ ⧟

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