A conditional operator (<exp1>? <exp2>: <exp3>) is called the ternary operator
A symbol that represent a specific action .For example a plus sign (+) is an operator that represent the addition.
Proximity is another way of saying location or how close an object is to the sensor.
Operator of what? Is the real question. I see an operator as someone in charge of whatever it may be.
The hamiltonian operator is the observable corresponding to the total energy of the system. As with all observables it is given by a hermitian or self adjoint operator. This is true whether the...