MATHEMATICAL NOTATION
Geometric Objects
| 0 | the number 0, the zero vector, the point (0, 0), the point (0, 0, 0) |
| a,b,c | real numbers (lower-case italics) |
| P, Q | points (upper-case italics) |
| l, m | lines (lower-case bold) |
| A, B | vectors (upper-case bold) (components Ai) |
| M | matrix (upper-case bold) |
| θ, φ | angles (lower-case greek) |
Derived Objects
Basic Operators
| +, −, /, * | standard math operators |
| ˙ | the dot (or inner or scalar) product |
| × | the cross (or outer or vector) product |
Basic Expressions and Functions
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