cubic curve


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cubic curve

[′kyü·bik ′kərv]
(mathematics)
A plane curve which has an equation of the form f (x, y) = 0, where f (x,y) is a polynomial of degree three in x and y.
References in periodicals archive ?
The central theme of the doodle was the cubic curve for which the female mathematician was well-recognized.
The book contained an exposition by example on the cubic curve which is known as "Witch of Agnesi.
The model was validated by considering the cubic curve fitting (normal Q-Q plot), the significance of [R.
The capacity modifying quadratic or cubic curve as a function of mass flow fraction (CAPFF) is given by:
The electric power modifying quadratic or cubic curve as a function of part-load ratio is given by:
The indoor coil capacity at various indoor and outdoor air temperatures is determined using the rated capacity and capacity-modifying biquadratic or cubic curves for temperature and a cubic or quadratic capacity modifying curve for Flow Fraction (2).
1993,1997) have considered cable as parabolic and cubic curve in shell and semiloof shell elements whereas Pandey et al.
The cubic curve looks a little more interesting, but the improvement in fit is statistically negligible (R-squared = 0.
Figure 1B shows just one curve, because the quadratic and cubic curves are identical over the relevant range.
This paper tries to describe that string of events by virtue of a simple algebraic cubic curve, in the hope that it might be the starting point for deeper mathematical investigations by other authors.
Then, in Astronomy, the cubic curve that we are seeking must have negative values for times smaller that -290 (times before Aristarchus) and after Aristarchus but before Copernicus (Dark Ages of Astronomy), while after Copernicus, the cubic must be positive.
Hence, cubic curves are 'S' shaped and quartic curves have three 'bends'.