u.Appendix A:
Abbreviations, symbols
and codes
371
Abbreviations used electronics for
multiples and submultiples
T Tera 1012
G Giga 109
M mega meg 106
K Kilo 103
D Deci 101
C Centi 102
M Milli 103
M Micro 106
N Nano 109
P Pico 1012
Terms and symbols used electronics
Term Symbol
Approximately equal ⯝
Proportional to
Infinity
Sum Σ
Greater than
Less than
Much greater than
Much less than
Base natural logarithms e
Common logarithms log x
Temperature θ
Time constant T
Efficiency η
Per unit p.
