The critical points of a cubic equation are those values of x where the slope of the cubic function is zero. They are found by setting derivative of the cubic equation equal to zero obtaining: f â²(x) = 3 ax 2 + 2 bx + c = 0.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).
The name Karina is of Russian and Polish origin. The meaning of Karina is pure, chaste. Karina is generally used as a girl's name. It consists of 6 letters and 3 syllables and is pronounced Ka-ri-na.
Karina means a dove in the sky, love will be found when not looking, it means pure, loving, caring and very beatiful without admitting it. Musicaly talented, smart, and athletic. U are very nice and a great friend....(don't put mean things or bad words on name meanings). karina means my dear one or the pure one.she is different from everyone around her because she does not follow anyone and is found wierd by many because of her this. she is a talented, intelligent and beautiful person but wiil never agree to it.arina means a dove in the sky, love will be found when not looking, it means pure, loving, caring and very beatiful without admitting it. Musicaly talented, smart, and athletic. U are very nice and a great friend....(don't put mean things or bad words on name meanings). karina means my dear one or the pure one.