Mathematical English Usage - a Dictionary

by Jerzy Trzeciak


We adopt the convention that the first coordinate i increases as one goes downwards, and the second coordinate j increases as one goes from left to right.

a direction pointing downward with respect to τ

[Note that downward and downwards can be used without distinction as adverbs, but the standard form of the adjective is downward (e.g., in a downward direction).]

Back to main page