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Encyclopedia of Electrical Engineering
HOME Q & A TABLE OF CONTENTS
realnfo.com
Encyclopedia of Electrical Engineering
HOME Q & A TABLE OF CONTENTS

Scalars and Vectors

A scalar is a quantity that has magnitude and no direction. It is a one dimensional measurement of a quantity, like temperature, speed, or mass.
A vector has more than one number associated with it. It has a magnitude, called speed, as well as a direction, like North or Southwest or 10 degrees west of North. A simple example is velocity.