src/slam/geometry.cpp
int minProjections(int pairs) {
	double retVal = ( -1.0 + pow(1.0 + 8.0 * double(pairs), 0.5) ) / 2.0;
	//printf("%s << retVal(%d) = (%f)\n", __FUNCTION__, pairs, retVal);
	return int(ceil(retVal+1.0));
}
/// \brief 		Minimum number of projections required to achieve the specified number of pairs
\brief                 Minimum number of projections required to achieve the specified number of pairs
\ brief Minimum number of projections required to achieve the specified number of pairs
int minProjections(int pairs) {
	double retVal = ( -1.0 + pow(1.0 + 8.0 * double(pairs), 0.5) ) / 2.0;
	return int(ceil(retVal+1.0));
}
int minProjections ( int pairs ) { double retVal = ( -1.0 + pow ( 1.0 + 8.0 * double ( pairs ) , 0.5 ) ) / 2.0 ; return int ( ceil ( retVal + 1.0 ) ) ; }
\brief                 Minimum number of projections required to achieve the specified number of pairs
\ brief Minimum number of projections required to achieve the specified number of pairs
//printf("%s << retVal(%d) = (%f)\n", __FUNCTION__, pairs, retVal);