Given any cubic or quartic equation with real coefficients, it can be transformed by a change of variable into a standard form, and thus solved by means of a double-sided scale (Fig. 1) in the case of ...

This is a preview. Log in through your library . Abstract In the present paper the authors propose an algorithmic procedure different from the known algorithms [1,2] of searching for the Liouvillian ...

A Monte Carlo study (Wahl 1971) is compared to the study of Marks and Dunn (1974) which investigated the ability of three discriminant functions, the quadratic, best linear, and Fisher's linear ...