Extrapolate-Interpolate | Commonly Confused Words
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Extrapolate vs. Interpolate

Extrapolate

/ɪkˈstræpəleɪt/
To use known information to estimate or predict something not yet known

Examples:

Economists often extrapolate future trends from past data.She can extrapolate the outcome based on her vast experience.Scientists extrapolate climate changes using computer models.

Synonyms:

Antonyms:

Interpolate

To estimate or calculate a value within two known values in a sequence of values.

Examples:

The artist often interpolated modern themes into classic works.The mathematician interpolated values to complete the missing data.The historian interpolates disputed events to offer a fresh perspective.

Synonyms:

Antonyms:

Ways to tell them apart:

etymology
  • Remember that inter means between, so interpolate relates to working within a known range.
  • In contrast, extra suggests beyond, indicating extrapolate is about extending beyond known points.
  • Interpolate is like filling gaps in data, while extrapolate is projecting data into the unknown.
  • Interpolate deals with interior data points, whereas extrapolate deals with exterior points.
  • Interpolate is safer with known conditions; extrapolate ventures into the realm of prediction.
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