noun[mass noun] informal
- With all the inverse trig. functions you must carefully select the answer or answers that are appropriate to the problem you are solving.
- The mathematical functions include the standards found on a good pocket calculator, such as exponents, logs, trig, matrices, as well as sigmoid, gamma and log gamma functions.
- We spent a few minutes yesterday using trig to work out how far away the most distant vapour trail was.
late 19th century: abbreviation.
US or archaic