Assertion: focal ratio | /r/HasProperty | indicated using hooked f
Facets:
value: with the format
type: OTHER
value: commonly
type: TEMPORAL
Source sentences:
text: The f-number is commonly indicated using a hooked f with the format f/N, where N is the f-number.
text: The f-number is commonly indicated using a hooked f with the format f/N, where N is the f-number.