# MATHS SYMBOL CLASS FOR WAEC GCE 2014

**extralmaster**on Sep 19, 2014 in » 747 view(s) » 14 Comments

/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.

EXAMPLE 1.

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 8 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:

â†’ comma means NEXT LINE(e.g)

x : 1,2,3

fx : 4,5,6

fx-xbar : 10,8,6,4

x|fx |fx-xÂ¯Â¯|

1| 4 | 10 |

2| 6 | 8 |

3| 8 | 6 |

4| 10| 4 |

ANOTHER EXAMPLE:

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 |xÂ¯Â¯|

1| 4 | 7 |

2| 5 | 8 |

3| 6 | 9 |

2)*=multiplication sign.

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(xÂ¯Â¯)

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

8)Tita = Î¸ eg SinÎ¸.

10)Root or Rut or Sqrt or sqr root = âˆš ; eg Root2 means âˆš2

11)/ means Â¡Ã‚

12)----(1) means equation 1

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