MATHEMATICAL SIGNS
+ plus
- minus
× multiplied by
± or ∓ plus or minus
÷ divided by
= equal to
> greater than
< less than
∫ difference between
∝ proportioned to
∞ indefinitely more
0 indefinitely less
∠ angle
∟ right angle
⊥ perpendicular
∥ parallel
≚ equiangular
○ full circle or 360°
◠ arc of circle
▭ rectangle
△ triangle
□ square
∶ and ∷ signs of geometrical proportion, as in
A∶B∷C∶D
܅ minus, the sign of mathematical proportion
∷ equal to, in arithmetical proportion
∴ therefore
∵ because
√ root or radical
̅ vinculum
| bar
∆ finite difference
° degree of circle
′ minute of circle
″ second of circle
ASTRONOMICAL SIGNS
PLANETS
🌞︎ Sun ☿ Mercury ♀ Venus 🜨 Earth ♂ Mars ♃ Jupiter ♄ Saturn ☉ Uranus ♆ Neptune
PHASES
🌚︎ new moon 🌛︎ first quarter 🌝︎ full moon 🌜︎ last quarter