SOME years ago you published some interesting communications in regard to the graphical solution of cubic and quartic equations (vol. lxi. p. 55, vol. lxiii. pp. 515 and 609, vol. lxiv. p. 5). The ...

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 ...

Google Doodle on Saturday marked the 971st birth anniversary of Omar Khayyam, a celebrated Persian mathematician, poet, philosopher, and astronomer. Khayyam best known for his work on the ...