For cubic equations in two variables, see cubic plane curve. Graph of a cubic function with 3 real roots (where the curve crosses the horizontal axisâwhere y = 0) (and hence no complex roots).n other words, a cubic function is defined by a polynomial of degree three. Setting Æ (x) = 0 produces a cubic equation of the form: Usually, the coefficients a, b, c, d are real numbers. However much of the theory of cubic equations for real coefficients applies to other types of coefficients (such as complex ones).
Neurosis (Boeree, 2006) is Karen Horneyâs theory about the ways in which people attempt to make life bearable for themselves. Unlike other theorists, Horney saw it as âcontinuousâ with normal life.
Overall these components of Kalcabaâs theory of comfort combined and applied can make a significant difference in a patientâs life and experience with health care (Kolcaba, 2003). Assumptions. Kolcaba describes assumptions of person, health, environment and nursing within the Comfort Theory. A patient is the individual, family, institution, and community that is in need of health care. Health is defined as the âoptimal functioning, as defined by the patient, group, family or communityâ (Kolcaba, 2011).