data-ad-format="horizontal">



 

Scalar

Scalars are numbers that are used to measure size, or how big or small something is. They represent the magnitude of a quantity such 12.5 miles, or 34 degrees C.

Numbers that are not scalars

  • Counting numbers

    Numbers that are used to count things are not considered scalars, although you can do arithmetic with them. For example 2 apples + 3 apples = 5 apples.
    For more see Counting numbers.

  • Identifying numbers

    Identifying numbers are not scalars and are used to identify something or act as an identifying label. For example a phone number, or student id number are not scalars. You cannot do arithmetic with them. For example, dividing a phone number by three has no meaning.

While you are here..

... I have a small favor to ask. Over the years we have used advertising to support the site so it can remain free for everyone. However, advertising revenue is falling and I have always hated the ads. So, would you go to Patreon and become a patron of the site? When we reach the goal I will remove all advertising from the site.

It only takes a minute and any amount would be greatly appreciated. Thank you for considering it!   – John Page

Become a patron of the site at   patreon.com/mathopenref

Other number topics

Scalar numbers

Counting numbers

Numbers that have factors

Special values