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to precompute

to precompute

1 6.9
Do calculations in advance so results are ready and faster to use
  • verb
  • /priːkəmˈpjuːt/
  • Specialized
: precalcular
  • You can use a rainbow table to find a collision to give you a password, and that may take a suitably short period of time on a low-powered machine if the password is matched by the dictionary and you have precomputed or downloaded a suitable table.

You can just pull from the approximation you've precomputed already.

Examples

  • Since there are only five buckets of code words, the encoding and decoding can be sped up by precomputing all possible code lengths.

    Academic text (1996)
  • Subtracting the modulus is accomplished by precomputing a value K = 2^k - N, or the two's complement of N.

    Academic text (1999)
  • So what's true about both N and base to the size constant, Constant, can you precompute it?

  • OK, so ahead of time, I'll just precompute this, this bit string that has ones at the rightmost slot for each of these K fields.

  • Human brains only run at 100 Hz, and I responded in real time, so most of the work must have been precomputed.

    Blog text (26)
  • One of the techniques, precomputing addresses for indirect addressing, is trivial but important.

    Academic text (1997)
  • This precludes generating a test signal at each arbitrary band center frequency; instead, the precomputed signal closest to the desired center frequency is used.

    Academic text (1990)
  • In the case of driver output resistance, an equivalent device size is determined for the channel-connected components and converted to a small-signal resistance using precomputed coefficients.

    Academic text (1999)
  • The k-coherence technique combines the propagation idea with a pre-computation stage in which the k nearest neighbors of each patch are cached, and later searches take advantage of these precomputed sets.

    Academic text (2011)
  • To improve efficiency, we should precompute the results of these calculations before the meeting.

Synonyms

to calculate
vsto precompute
23 3.4

To figure out what will happen using information you have

focuses on advance work to improve later speed rather than predicting outcomes
to precalculate
vsto precompute
1 5.1

Work out a number or result before you need it

is done beforehand specifically to speed or make later use more efficient

Surface Forms

precompute infinitive
precomputed past participle
precomputing present participle
precomputes third person singular

Morphology

precompute = compute (transparent) = pre + compute

The meaning is a straightforward application of 'pre-' meaning 'before' to 'compute', giving 'compute beforehand'.

Etymology

Precompute is made of pre- meaning 'before' and compute meaning 'to calculate', the same part as computer. So to precompute is to calculate things 'before' you need them, like doing your homework early so a program already has the answers and runs faster.