Keyarn
MATHS, PHYSICS,
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(1) / means division or divide
Examples:
2/2 means 2/2
2 whole no 3/4 means 2¾
M=wp (1/3)yp^2 means m=wp ¾y 2
(2) Log means logarithm
Example:(Log5 ( base 8 ) means Log8 5
(3) * or x means multiplication
Example:2 * 2 means 2 × 2
(4) ^ means Raise to power
Examples:
3 ^ (-1) means 3 -1
5 ^ (2) means 5 2
30cm ^ (-2) means 30cm -2
(5) Tita means θ
Example:Tan tita means tan θ
(6) Pie means π
Example:Pie R sqr h means πr 2 h
(7) Base means subscript
Example:2 Base 3 means A 3
(Square root means √
Examples:
√3-√6 2√3 means Root 3-root6 2root 3
√(¾) means sqr root(3/4)
(9) bar means a dash on top a number of letter
Example:X bar means x̅
(10) —(1) means equation 1
(11) Proportional means
Example:R is proportional to 3/4rut m means R
¾
(12) Alpha means α
(13) Beta means β
(14) Gamma means γ
(15) cube root means
(16) Mu means μ
(17) Rho means ρ
(18) Delta means δ
(19) Sigma means σ
(20) Tau means τ
(21) Ohm means Ω
(22) Lamda means λ
(23) Omega means ω
(24) Intersection means ∩
Example:B intersection C means B∩C
(25) Union means U
Example:B union C means BUC
(26) Factorial means !
(27) complements in sets means ‘
(28) (aq),(g),(l),(s) is used in chemistry to show
the state of matter in equations
(29) Equivalent to means ≡
(30) Not equal to means ≠
(31) Quotation means “ ”
(32) Less or equal to means ≤
(33) Greater or equal to ≥
Example:(3/4)>=(1/2) means ¾ ≥ ½
(34) Plus or minus (or -) means ±
Example:(3/4)<=(1/2) means ¾ ≤ ½
(35) Element of means
Example:2 belongs to X or 2 is a member of X
means 2 X
(36) Percent or percentage means %
(37) Degrees Fahrenheit means
(38) Degrees Celsius means
(39) Universal set means ξ or U
(40) Null or empty set means or {}
(41) (42) 2.S.F means 2 significant figures
(43) P=(2,3) means P={2,3} in sets
(44) Propotional to means
(45) Therefore means
(46) KNO(3)(s) means KNO3 (s)
(47) NaCl=> Na ^ ( ) Cl ^ (-) means NaCl → Na
Cl-
(48) Summation means
(49) Parallel lines means
(50) Perpendicular lines means
(51) Reversible equation means ↔
(52) Infinity means ∞
(53) Approximately means ~
(57) Approximately equal to
Other Symbols
(1) File means
(2) Δ means Change or Triangle
(3) slope or differentiation means dy/dx or ∂y/
∂x or δy/δx
or Δy/Δx
(4) Parenthesis means …
(5) Naira means
(6) Integral means ∫
(7) Almost equal to means ≈
(For all means
(9) There exist means
(10) Epsilon means ε
(11) Vertical dots means ⁞
Tables, Radiativity Diagrams
Table1
A table of this would be computer as follows
X:1,2,3,4
FX:4,6,8,10
F(X-Xbar):10,8,6,4
Table2
A table like this would be computed as follows
Particulars: maintenance,salaries &wages, Purchase of
Drugs, total
Amount: 2500,1000,2000,5500
Logarithm Table
Tabulate
No: 92.63, Log: 1.9667
No: 2.914, Log: 0.4645
2.4312
Antilog = 269.9
Therefore 92.63 * 2.914=2.4312
Radiativity Diagram
means
(238)U(92)=>(234)Th(90) (4)He(2)
This is computed as follows:
(1)(-b± sqr rut(b^2-4ac))/2a
(2)Square root ((2Qh)/100)
(3)Xbar=Efx/ef
(4)Summation (n=1 to infinity )P(n)
(5)S.D= Sqr Rut ((Ef|x-xbar|^2))/Ef
(6)R is proportional to1/ sqr roott