Without vector notation, this would be written as three separate equations (one for each component of B and E) — each one a tangle of coordinates, multiplications and subtractions.

Without vector notation, this would be written as three separate equations (one for each component of B and E) – each one a tangle of coordinates, multiplications and subtractions.

Vector notation A vector quantity has both direction and magnitude . (In contrast a scalar quantity has magnitude only - eg, the numbers 1, 2, 3, 4...) The diagram above represents a vector.