Just want to know how you enter mathematical expressions.?

Question

How can you enter mathematical expression same with this one.
u⁸
I wonder how exponent 8 is made that way. I can only express that as u^8.

Same thing with other mathematical symbols. Where did integral sign come from? And the greater than equal sign? I use (>=) as greater than equal sign. But I saw someone who express it in right way.

Want to learn how to enter them like a real mathematical expression. Thanks! please teach me.

Answer 1

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Fractions:

½ ¼ ¾ ⅕ ⅖ ⅗ ⅘ ⅙ ⅚ ⅛ ⅜ ⅝ ⅞ ⅓ ⅔ ⅟



Arithmetic operators:

× • · ⋅ √ ∛ ∜ − ± ∓ ÷ ⁄ / \



Inequalities and relationships:

= ≤ ≥ > < ≠ ≈ ∼ ≅ ∝ ≝ ≟ ≪ ≫ ≮ ≯ ≰ ≱



Constants:

π ∞ ℮



Superscripts

⁰ ¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ⁺ ⁻ ⁼ ⁽ ⁾ ⁿ º ª



Subscripts:

₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₊ ₋ ₌ ₍ ₎



Functions:

∑ ∏ ƒ ⌊ ⌈ ⌉ ⌋ ║ | ∐ ∘



Calculus

∫ ′ ″ ‴ ∇ ∂ ⌠ ⌡ ∬ ∭ ∮ ∯ ∰ ∆



Grouping symbols

[ ] ﴾ ﴿ ( ) { } 〈 〉



Logic, Boolean, Set theory, Argumentation

¬ ~ ≡ ≢ ∩ ∪ ∧ ∨

∀ ∃ ∈ ∋ ∉ ⊄ ⊕

⊗ ⊂ ⊃ ⊆ ⊇ ⊻ ⊼

⊽ ∌ ∖ ⋄ □ ◊ ○ ⊢

├ ⊣ ⊤ ⊥ ∅ ∴ ∵

∄ ⊅ ⊈ ⊉ ∷ ∁ ℙ

ℕ ℤ ℚ ℝ ℂ ℍ



Modifying Symbols:

.̄ .̅ .̃ .̂ .̇ .̈ .̊



Arrows

→ ← ↑ ↓ ↕ ↔ ↖ ↗ ↘ ↙

⇒ ⇐ ⇑ ⇓ ⇕ ⇔



Geometry:

∠ ∡ ⊥ ∆ ∟ ║ ∦ ∢ ⊾ ⊿ ⊢ ⊣ ⊤ ⊥



Other things:

° … ⋮ ⋰ ⋱ ‾ % ‰ ‱ ∶

ℵ ℘ ℑ ℜ µ ϑ ϒ ϖ ϶ ⁀ ℨ ℧



Greek alphabet... capital and lowercase

Α α

Β β

Γ γ

Δ δ

Ε ε

Ζ ζ

Η η

Θ θ ө

Ι ι

Κ κ

Λ λ

Μ μ

Ν ν

Ξ ξ

Ο ο

Π π

Ρ ρ

Σ σ

Τ τ

Υ υ

Φ φ

Χ χ

Ψ ψ

Ω ω

Answer 2

Some of those symbols require you to have the right font in your browser to display properly. For example, I see the letter u and a little box, not u with an exponent of 8.



Most fonts have basic mathematical expressions available. If you are using windows, run the character map program (Start/Run/charmap on XP - I don't know where it is on Vista). From the character map program, you can find symbols and copy them to be pasted into your question.



_/

Answer 3

We just "cut and paste" from other places, etc. But here is a list of things you can keep on file and "cut and paste" as you need them:



± √ ° ¹ ² ³ ∞ ∩ ≈ ≠ ≤ ≥ π | ~ Σ Θ



Point Slope Form:

y-y₁=m(x-x₁)





Slope of a line:

m = (y₂-y₁) / (x₂-x₁)



Have a good day!