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Scilab help >> Elementary Functions > Log - exp - power > log2

log2

base 2 logarithm

Calling Sequence

y=log2(x)

Arguments

x

vector or matrix

Description

log2(x) is the "element-wise" base 2 logarithm y(i,j)=log2(x(i,j)).

Examples

2.^log2([1,%i,-1,-%i])

See Also

  • log — natural logarithm
  • hat — (^) exponentiation
  • ieee — set floating point exception mode
  • log10 — base 10 logarithm
  • frexp — dissect floating-point numbers into base 2 exponent and mantissa
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with contributors 		Last updated:
Mon Oct 01 17:34:41 CEST 2012