What's the difference between exponent and significand?

Exponent


Definition:

  • (n.) A number, letter, or any quantity written on the right hand of and above another quantity, and denoting how many times the latter is repeated as a factor to produce the power indicated
  • (n.) One who, or that which, stands as an index or representative; as, the leader of a party is the exponent of its principles.

Example Sentences:

  • (1) Two recent innovations in time-dose models are reviewed: the linear-quadratic (L-Q) and the variable-exponent Time-Dose Factor (TDF) models.
  • (2) With significant correlation, the experimental data show the statistics of the system not to be casual and Gaussian, but chaotic and persistent, with Hurst exponent <H> approximately 0.77 and fractal dimension <D> 1.23.
  • (3) However, the exponent N did vary with the level of effect and was in the range 0.33-0.51.
  • (4) The cells attached firmly, grew slowly, their growth curve showed inhibitory rate amounted to 52.87%, and cellular division exponent displayed their peak value 1.5 times less than that of MGc 80-3 cells.
  • (5) The Ca2+-activated K+ channel of the human red cell membrane showed single-file diffusion with a flux ratio exponent n of 2.7.
  • (6) In all 18 cases, power function exponents were higher for effects of dynamic displacement than for effects of dynamic force on discharge frequency.
  • (7) The estimated numerical coefficients (ki) for the three exponents (alpha, beta, gamma) of the basic dimensions (MLT) do not agree with those of the prevailing theories of biological similarity.
  • (8) The ti was substituted into the first derivative function of the three exponents to yield the kie.
  • (9) Concentration exponents, eta-values (the logarithmic values relating changes in rates of kill to specified changes in concentrations) and A-values (extrapolated D-values at 1% concentration), were determined.
  • (10) After conditioning hyperpolarizations, the log [ninfinity - nt] vs. time curve could not be fitted by a single exponent regardless of the power of n chosen.
  • (11) However, the data suggest significant nonlinearity in this plot, the magnitude of the exponent of the PE vs A relationship increasing by about 20% as A increases from 0.2 to 4.0.
  • (12) Just as Russia has long positioned itself as the defender of the “true Europe” against the alleged degenerate actual version, Russia today claims to be the chief exponent of genuine European values that it asserts the west as a whole has lost.
  • (13) Depending on the experimental conditions, 45Ca2+ washout in these cells was described by either two or three exponential functions, whereas 45Ca2+ uptake was described only by a two-exponent function.
  • (14) The M-intermediate formation (400 nm) and the L-intermediate decay (520 nm) were found to be well described by a sum of two exponents (time constants, tau 1 = 65 and tau 2 = 250 microseconds) for the wild-type bR and three exponents (tau 1 = 55 microseconds, tau 2 = 220 microseconds and tau 3 = 1 ms) for the D96N mutant of bR.
  • (15) Time and hence the time exponent was constant (14 days).
  • (16) Considerable differences were found in the value of the crack growth exponent (n) among the three ceramics.
  • (17) The surface mass exponents are regarded as another kind of scaling exponent, and the spectrum f(alpha) provides further detailed information about the surfaces of enzyme and protein.
  • (18) This exponent was larger than that seen when two series of graded heat stimuli of 120 s duration were used, indicating more sensitization despite the fact the total time of exposure to noxious heat was less.
  • (19) Tesco Mobile has been the leading exponent in this area.
  • (20) It was found that psychophysical power law governs VEP latency as well as RT with an exponent of about -0.32.

Significand


Definition:

Example Sentences:

  • (1) A freeze-etch study of nuclear pores performed on human lymphocytes, epidermal and corneal cells, on hamster fibroblasts, on rat and hamster sarcoma cells and cells from a human malignant melanoma, revealed that the frequency of pores as a part of very important biological cellular structures increases in proliferating cells, and that there is a statistically significand difference between normal and tumor cells.
  • (2) Thus, HVA was significandly reduced in the patients with epilepsy compared with the controls.

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