polynomial equation
univariate algebraic equation
characteristic equation
equation obtained by equating to zero the characteristic polynomial of a matrix or of a linear mapping
quadratic equation
polynomial equation in a single variable where the highest exponent of the variable is 2
quartic equation
polynomial equation of degree four
septic equation
mathematical equation
characteristic equation of a linear differential equation with constant coefficients
algebraic equation of degree n upon which depends the solution of a given nth-order differential equation or difference equation
cubic equation
a polynomial equation in a single variable where the highest exponent of the variable is 3.
quintic equation
equation whose solutions are the zeroes of a polynomial of degree 5
sextic equation
polynomial equation of degree six