| Symbol |
 |
Description |
|
Example |
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| + |
|
Plus, positive, add |
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| – |
|
Minus, negative, subtract |
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|
 |
|
Plus or minus, positive or negative |
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|
 |
|
Minus or plus |
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| x |
|
Multiplied by, times |
|
| A x B = A .B = AB; 3 x 4 = 12 |
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|
 |
|
Divided by |
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| |
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Proportion |
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| = |
|
Equals, is equal to |
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|
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| > |
|
Is greater than |
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| < |
|
Is less than |
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|
 |
|
Is not equal to |
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|
 |
|
Is greater or less than |
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|
 |
|
Is not greater than |
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|
 |
|
Is not less than |
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|
 |
|
Is greater than or equal to |
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|
 |
|
Is less than or equal to |
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|
 |
|
Is proportional to, varies with |
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|
 |
|
Infinity |
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|
 |
|
Is perpendicular to |
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|
 |
|
Angle |
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| ~ |
|
Is similar to |
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|
 |
|
Is parallel to |
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|
 |
|
Root of |
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|
| ( ) |
|
Parenthesis |
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|
| []
{} |
|
Brackets |
|
Quantities enclosed or covered by
the symbol are taken together |
|
| _____ |
|
Vinculum |
|
|
|
 |
|
Since, because |
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|
 |
|
Hence, therefore |
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| º |
|
Degrees |
|
|
|
´
m
min |
|
Minutes of arc, feet |
|
|
|
´´
s
sec |
|
Seconds of arc, inches |
|
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|
| ´ ´´ ´´´ etc. |
|
Prime, second, third, etc. |
|
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|
 |
|
pi, circumference/diameter |
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| E |
|
Modulus of elasticity |
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|
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| e |
|
Base of Napierian, natural or hyperbolic logarithms |
|
|
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| g |
|
Accleration due to gravity |
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