Additional Arithmetic


Functions
double	simth::arg (const Complex &comp)
int	simth::inversePower2 (int x)
double	simth::db2linearPowerRatio (double snr)
double	simth::db2reciprocalLinearPowerRatio (double snr)

Function Documentation

double arg ( const Complex & comp )

Returns the argument (phase) of the given complex number in the range from 0 to 2pi. Note that the corresponging function of the standard library returns the argument in the range from -pi to pi.

int inversePower2 ( int x )

Returns $\log_2(x)$ if the given integer argument x is a power to 2, i.e. $x=2^y$ where y is an integer value (actually it is the return value). If the integer argument x is not a power to two, the function throws an std::runtime_error.

double db2linearPowerRatio ( double snr ) [inline]

Returns the linear power ratio for the power ratio given in dB as argument: $r_{lin} = 10^{r_{dB}/10}$ .

double db2reciprocalLinearPowerRatio ( double snr ) [inline]

Returns the inverse linear power ratio for the power ratio given in dB as argument: $1/r_{lin} = 1/10^{r_{dB}/10} = 10^{-r_{dB}/10}$ .

Generated on Mon Apr 24 21:19:19 2006 for simthetic by

1.4.1

Additional Arithmetic

Functions

Function Documentation