January 2014
Intermediate to advanced
144 pages
4h 2m
English
Content preview from Mathematical Formulas for Industrial and Mechanical Engineering
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1.6 Set Theory Symbols
(Continued)
Symbols How to Read It How to Use It Examples
π pi constant π 5 3.141592654... is the ratio
between the circumference and
diameter of a circle
c 5 π d 5 2 π r
rad radians radians angle unit 360
5 2π rad
grad grads grads angle unit 360
5 400 grad
Symbols How to Read It How to Use It Examples
{ } set a collection of elements A 5 {3,7,9,14}, B 5 {9,14,28}
A - B intersection objects that belong to
set A and set B
A - B 5 {9,14}
A , B union objects that belong to
set A or set B
A , B 5 {3,7,9,14,28}
ADB subset subset has less elements
or equal to the set
{9,14,28}D{9,14,28}
ACB proper subset/strict
subset
subset has less elements ...
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