# Shared Flashcard Set

## Details

maths
stuff
10
Mathematics
07/16/2009

Term
 Surds
Definition
 a surd is an irrational number
Term
 Pi
Definition
 pi is the circumfrence divided by the diameter of a circle[image] acceleratingfuture.com©
Term
Definition
Term
 Equal sign
Definition
 The equal sign or "=" is a mathematical symbol used to indicate equality on both sides of the symbol.
Term
 an inequation
Definition
 In mathematics, an inequation is a symbol that means that two expressions are not the same or do not have the same value. This symbol is written with a crossed-out equals sign.
Term
 aproximate
Definition
 means two variable are roughly similar
Term
 union
Definition
 A ∪ B means the set of elements which are either in A, or in B, or in both
Term
 intersect
Definition
 A ∩ B means the set that contains all those elements that A and B have in common
Term
 delta
Definition
 a change in a mathimatical variable, equation, inequation, number, etc...
Term
 plus-minus
Definition
 means that an equation has two anwers, shown in an equation such as x=10 ± 2 is an easier way of writing x=10+2, x=10-2
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