Definition:Dimension (Measurement)/Fundamental Dimensions

Definition

The SI-recommended fundamental dimensions are:

				\(\ds \mathsf M:\)				mass
				\(\ds \mathsf L:\)				length
				\(\ds \mathsf T:\)				time
				\(\ds \Theta:\)				temperature
				\(\ds \mathsf I:\)				electric current
				\(\ds \mathsf N:\)				amount of substance
				\(\ds \mathsf J:\)				luminous intensity

Also defined as

Some sources prefer to use:

\(\ds \mathsf Q:\)

electric charge

instead of:

\(\ds \mathsf I:\)

electric current

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): dimension: 6.
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): dimension: 6.
• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): dimensions