Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Not trivial; of some importance.
  • adj. Mathematics Of, relating to, or being an expression in which at least one variable is not equal to zero.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Not trivial.
  • adj. Having at least one non-zero variable.
  • adj. Needing significant computing power to solve; intractable.

Etymologies

From non- +‎ trivial (Wiktionary)

Examples

  • While it's what engineers call a nontrivial problem, making a car drive itself is ultimately just a matter of engineering, and will sooner or later become a reality.

    What will autonomous cars mean for cities?

  • Narayana Kocherlakota noted recently that the Fed would need to sell a "nontrivial" amount of its holdings, such as $15 billion to $25 billion a month, to return its balance sheet to precrisis levels.

    Slowly Fed Turns, Away From Easy Money

  • "nontrivial" in the sense that it wasn't easy to accomplish.

    ProHipHop: Hip Hop Business

  • That is surely a nontrivial gap, but it also means that three quarters of religious Americans approve of divorce in at least some circumstances.

    American Grace

  • You may question the assumption of randomness all you want, but the theory makes a nontrivial prediction that is born out experimentally, so the standard model of Brownian motion is generally accepted.

    The Weasel Thread

  • You may question the assumption of randomness all you want, but the theory makes a nontrivial prediction

    The Weasel Thread

  • Because the Z flag is the only flag that is a nontrivial function of X, there is a delay of 1 after the ALU output becomes valid in order that the Z flag is valid.

    Babbage-Boole Digital Arithmetical and Logical Mill: Part 2 « The Half-Baked Maker

  • There is thus an urgent need to find some nontrivial topics on which America and China can work together and so rediscover the win-win logic that prevailed during the Age of Optimism.

    Zero-Sum Future

  • Matt seems to be just blowing off the near-term risk of large bank failures in his commentary on these issues, but the risk of something like a double-dip recession makes the near-term risk of large bank failures nontrivial.

    Matthew Yglesias » Battle Lines on Banking

  • As to the nontrivial difference between 3% and 2%, the fact that 2% both has been the historical rate on T-bonds for the last 75 years and is the rate currently projected by the market, and how ...

    Actuarial Scoring Errors, Arnold Kling | EconLog | Library of Economics and Liberty

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