Examples from the Web for extrapolation
You claim that you actually guessed where that ship was going to be, but you followed the computer's extrapolation instead?But, I Don't Think|Gordon Randall Garrett
Abolish, now, one of the percipients, and the interpolation changes into 'extrapolation.'The Meaning of Truth|William James
The last three values are those obtained by extrapolation with platinum-rhodium and platinum-iridium couples.
Abolish, now, one of the percipients, and the interpolation changes into ‘extrapolation.’Essays in Radical Empiricism|William James
An extrapolation from the fact that there was vegetation below.Operation: Outer Space|William Fitzgerald Jenkins
Word Origin and History for extrapolation
by 1867, from extra- + back half of interpolation; original sense was "insert intermediate terms in a mathematical series." Transferred sense of "drawing a conclusion about the future based on present tendencies" is from 1889. Cf. extrapolate.
Culture definitions for extrapolation
A mathematical procedure designed to enable one to estimate unknown values of a parameter from known values. A common method of extrapolation is to look at data on a curve, then extend the curve into regions for which there is no data. Extrapolation is often used to predict the future.