It may be said that the conceptions of differential quotient and integral, which in their origin certainly go back to Archimedes, were introduced into science by the investigations of Kepler, Descartes, Cavalieri, Fermat and Wallis. . . . — Sophus Lie Copy Share Image
It may be said that the conceptions of differential quotient and integral, which in their origin certainly go back to Archimedes, were introduced into… — Sophus Lie Copy Share Image
Among all of the mathematical disciplines the theory of differential equations is the most important... It furnishes the explanation of all those elementary manifestations… — Sophus Lie Copy Share Image
