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# MATHS SYMBOLS TO NOTE FOR MATHEMATICS EXPO

*MATHS SYMBOLS TO NOTE FOR MATHEMATICS EXPO*
__________________

/ means DIVISION

* means multiplication

tita u should know dat.

rais means raise to power

^ means raise to power

sqr rut/ squar rut means square root

—-(1) means equation 1

yr means year

f(x-xbar) means x MINUS x BAR as in statistics
which means that MINUS WILL BE ON TOP OF x.
, (Comma) means NEXT LINE, THIS MEANS THAT THE FOLLOWING NUMBER IS UNDER THE
NUMBER IT IS FOLLOWING i.e UNDER.

It is
usually used during STATISTICS when drawing a
table.
X:1,2,3,4,
FX: 4,6,8,10
FX-Xbar: 10,8,6,4,

DRAW A TABLE WITH X|FX|(FX-Xbar)
The above statement means that:
~For X, it has 1 2 3 4 5 6 under it. which means 1
is under 2, 2 is under 1, 3 is under 2, 4 is under 3
and so on…
~Under FX you have 4, then 6 under 4, then 8g
under 6, then 10 under 8, then 12 under 10…..
~Under FX-Xbar you have 10, then 8 under 10,
then 6 under 8, then 4 under 6, then 2 under 4,
then 1 under 2….

IN A CLEARER WAY:

→ comma means NEXT LINE(e.g)
x : 1,2,3
fx : 4,5,6
fx-xbar : 10,8,6,4
x|fx |fx-x¯¯|
1| 4 | 10 |
2| 6 | 8 |
3| 8 | 6 |
4| 10| 4 |

Class interval:
60-64,65-69,70-74,75-79,80-84,85-89,90-94,95-99.
X: 62,67,72,77,82,87,92,97.
F: 2,3,6,11,8,7,2,1.
FX: 124,201,432,847,656,609,184,97.
F(x-x bar)2:
561.12,414.18,273.36,33.66,84.48,476.42,351.12,333.06

MEANING OF THE ABOVE EXPRESSION:

Bar means Minus on top of d number or Variable
and comma means next line which means each of
them are unda. Eg 60-64 is unda Class interval,
then 65-69 is unda 60-64,etc .So comma means
unda.

NOTE THAT WHEN U SEE SOMETHING LIKE THE
ABOVE TWO EXAMPLES, U WILL NEED TO DRAW A
TABLE..

YOU NEED TO KNOW THESE ALSO:
MATHS CODES:

1) ,(comma) means next line.
(e.g)
x : 1,2,3

fx : 4,5,6

fx-xbar : 7,8,9

x|fx |x¯¯|
1| 4 | 7 |
2| 5 | 8 |
3| 6 | 9 |
2)*=multiplication sign. y

3)^ = Riase to pwer

4)P also means raised to power eg 10P6 means 10 raised to power six.

5)log3(base 4) ..Note:the base must be SUBSCRIPT .

6)x bar = mean symbol(x¯¯)

7)Pie = pie symbol eg Area of a circle is (Pie r2).

8)Tita = θ eg Sinθ.

10)Root or Rut or Sqrt or sqr root = √ ; eg Root2 means √2

11)/ means ÷

12)—-(1) means equation 1
=============================

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