What's the difference between cosine and sine?

Cosine


Definition:

  • (n.) The sine of the complement of an arc or angle. See Illust. of Functions.

Example Sentences:

  • (1) algebraic sum of these three cosine functions yielded a circadian waveform with peak-times occurring near 0300 and 1130 hr and a trough-time about 2200 hr.
  • (2) The EMG data were fit with a nonlinear, multiple cosine function, which allowed the identification of one, two, or sometimes three separate cosine peaks.
  • (3) The compression technique is a variation of the Consultive Committee on International Telephony and Telegraphy Joint Photograph Experts Group compression that suppresses the blocking of the discrete cosine transform except in areas of very high contrast.
  • (4) Data were fit using a two-step sine and cosine regression for each 24-h period.
  • (5) Diurnal periodicity in bradyarrhythmia (sinoatrial block, atrioventricular block) and heart rate was analyzed by the least square fit of 24-h cosines.
  • (6) In comparison with APO-UNSUS rats APO-SUS rats showed significantly more spike-wave discharges, especially during the dark period: both the mesor and the amplitude of the optimal cosine fitted to the data were significantly increased, whereas neither the acrophase nor the period length (24 h) differed.
  • (7) To implement a picture archiving and communication system, clinical evaluation of irreversible image compression with a newly developed modified two-dimensional discrete cosine transform (DCT) and bit-allocation technique was performed for chest images with computed radiography (CR).
  • (8) Histopathological changes as shown in sections stained with hematoxylin and cosin include patchy areas of colloid degeneration and thickening of the walls of some blood vessels in 10 out of 15 marasmic cases.
  • (9) The modulation depth showed a close to cosine relation with the angle between the preferred axis and the stimulus rotation axis.
  • (10) Curvature-increment thresholds were measured for contour curvatures from 0.31 to 10.65 deg-1, for grating spatial frequencies of 4.0 and 16.0 cycles per degree (cpd), and for gratings in either sine or cosine phase at the point of maximum curvature.
  • (11) The EFP nocturnal decline in LH did not conform to a cosine rhythm.
  • (12) According to acrophases of a fitted cosine curve and visual inspection on chronograms, the phases of circadian rhythms were delayed to different degrees in the evening shifts with a minimum of about 1 h for oral temperature and a maximum of about 4 h for urinary free noradrenaline.
  • (13) The acrophases (maxima of the adjusted cosine curve) occurred at 23:39, 07:59, 08:37 and 13:25 h, respectively.
  • (14) The fit of a 24-hr cosine function was able to reject the null hypothesis of amplitude = O in the majority of patients under intensive care.
  • (15) A compression technique based on the discrete cosine transform takes the viewing factors into account by compressing the changes in the local brightness levels.
  • (16) When two drifting cosine gratings are superimposed, they will, under appropriate conditions, form a coherently moving two-dimensional pattern whose resultant direction of motion may either be between (type I), or outside (type II) the directions of the two components.
  • (17) In the second experiment, DLs were obtained for linear, exponential, and raised-cosine onset envelopes at rise-time values between 10 and 40 msec.
  • (18) The new nonlinearity hypothesis cannot account for the results obtained with sine-phase test stimuli, though it gives a better account of the results with cosine-phase stimuli than does the early nonlinearity hypothesis which was tested and rejected by Nachmias and Rogowitz (1983).
  • (19) The gonadotropin secretory pattern was subjected to cosine analysis for identifying rhythmicity.
  • (20) Two-cosine functions often provided the best fit to the EMG data.

Sine


Definition:

  • (n.) The length of a perpendicular drawn from one extremity of an arc of a circle to the diameter drawn through the other extremity.
  • (n.) The perpendicular itself. See Sine of angle, below.
  • (prep.) Without.

Example Sentences:

  • (1) 19 different inserts from these clones along with the SINE, Alu, and the LINE, A36Fc, were used to probe Southern blots of early- and late-replicating hamster or human DNA.
  • (2) Total respiratory resistance (R(T)) was measured by the application of a sine wave of airflow to the mouth at the resonant frequency of the respiratory system.
  • (3) The former time-pattern displays a fast rise and an exponential decay, while the latter exhibits a damped sine wave.
  • (4) The distribution of response intensities from one meridian to another is adequately described by a sine wave function.
  • (5) Flight wingbeat and sine song frequency remain unchanged.
  • (6) In addition, the sine-sweep responses show quite different frequency characteristics in respect of depolarization and repolarization.
  • (7) We then aligned the edges again to produce incoherent motion and superimposed a sine-wave grating on the pattern.
  • (8) A sine wave current stimulus, applied between electrodes placed about one ear and an indifferent electrode, produced a cyclical sway predominantly in the coronal plane.
  • (9) The Bayesian solution to the Behrens-Fisher problem of normal distributions with differing variances was an acceptable compromise after the data had been transformed by the inverse hyperbolic sine method applicable to negative binomials.
  • (10) Observers were asked to discriminate between a simple 3 cpd sine-wave grating, (3), and a complex grating composed of this (3) plus a 9 cpd grating combined in one of two phases: peaks-subtract, (3,9:0), or peaks-add, (3,9:pi).
  • (11) The norepinephrine level increased with the stepwise tilting and the positive linear correlation was observed between the levels and the sine values of tilting angles.
  • (12) During stereotactic surgery, electrical impedance was measured by means of a roving electrode technique with a sine wave current of 10 kc.
  • (13) Beta cell deficiency is a sine qua non of Type 2 diabetes.
  • (14) In this paper we describe and demonstrate phase space trajectories generated for sine waves, mixtures of sine waves, and white noise (random chaotic events).
  • (15) The complex, peripheral and central regulation of TP transport plays an essential role sine TP-hydroxylase is not a saturated enzyme.
  • (16) Second, the evidence about the sensitivity of the brain during the first three years to early environmental input is now beyond dispute, making this the period sine qua non, in terms of investing limited resources to optimise outcomes, particularly for the disadvantaged children exposed to multiple risks.
  • (17) In both axes, the experimental exposure was an approximate half-sine waveform with peak acceleration up to 10 G and velocity change up to 9.2 m X s-1.
  • (18) A pursuit tracking task was carried out to investigate the effects of combinations of sine waves on the development of precognitive mode, which is defined as open-loop mode with little feedback.
  • (19) Data were fit using a two-step sine and cosine regression for each 24-h period.
  • (20) The specialized instruments are the sine qua non of the procedure.