Probability and statistics symbols table Symbol Symbol Name Meaning / definition Example P(A) probability function probability of event A P(A) = 0.5 P(A ∩ B) probability of events intersection probability that of events A and B P(A∩B) = 0.5 P(A ∪ B) probability of events union probability that of events A or B P(A∪B) = 0.5 P(A | B) conditional probability function probability of event A given event B occured P(A | B) =…

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## Number System

b – numeral system base dn – the n-th digit n – can start from negative number if the number has a fraction part. N+1 – the number of digits Binary Numeral System – Base-2 Binary numbers uses only 0 and 1 digits. B denotes binary prefix. Examples: 101012 = 10101B = 1×24+0×23+1×22+0×21+1×20 = 16+4+1= 21 101112 = 10111B = 1×24+0×23+1×22+1×21+1×20 = 16+4+2+1= 23 1000112 = 100011B = 1×25+0×24+0×23+0×22+1×21+1×20=32+2+1= 35 Octal Numeral System – Base-8…

Read More## Mathematical Symbols

Basic math symbols Symbol Symbol Name Meaning / definition Example = equals sign equality 5 = 2+3 ≠ not equal sign inequality 5 ≠ 4 > strict inequality greater than 5 > 4 < strict inequality less than 4 < 5 ≥ inequality greater than or equal to 5 ≥ 4 ≤ inequality less than or equal to 4 ≤ 5 ( ) parentheses calculate expression inside first 2 × (3+5) = 16 [ ]…

Read More## Calculus Symbols

Symbol Symbol Name Meaning / definition Example limit limit value of a function ε epsilon represents a very small number, near zero ε →0 e e constant / Euler’s number e = 2.718281828… e = lim (1+1/x)x ,x→∞ y ‘ derivative derivative – Leibniz’s notation (3×3)’ = 9×2 y ” second derivative derivative of derivative (3×3)” = 18x y(n) nth derivative n times derivation (3×3)(3) = 18 derivative derivative – Lagrange’s notation d(3×3)/dx = 9×2…

Read More## ASCII Codes

ASCII control characters (character code 0-31) The first 32 characters in the ASCII-table are unprintable control codes DEC OCT HEX Symbol Description 0 000 00 NUL Null char 1 001 01 SOH Start of Heading 2 002 02 STX Start of Text 3 003 03 ETX End of Text 4 004 04 EOT End of Transmission 5 005 05 ENQ Enquiry 6 006 06 ACK Acknowledgment 7 007 07 BEL Bell 8 010 08 BS…

Read More## Algebra Symbols

Math Algebra Symbols Symbol Name Meaning / definition Example x variable unknown value to find when 2x = 4, then x = 2 equivalence identical to equal by definition equal by definition equal by definition equal by definition approximately equal weak approximation 11 ~ 10 approximately equal approximation sin(0.01) ≈ 0.01 proportional to proportional to f(x) ∝ g(x) lemniscate infinity symbol much less than much less than 1 ≪ 1000000 much greater than much…

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