Complex sentence: In 1918 Hardy and Ramanujan studied the partition function "P" ("n") extensively and gave a non-convergent asymptotic series that permits exact computation of the number of partitions of an integer.
Split into simpler sentences: In 1918 Hardy and Ramanujan studied the partition function "P" ("n") extensively. They gave a non-convergent asymptotic series that permits exact computation of the number of partitions of an integer.