| He also worked on asymptotic analysis, fractional integration and singular partial differential equations. |
| In the following years he worked on mathematical topics, in particular trying to solve the classical Greek problem of squaring the circle. |
| For 10 shillings a week, plus his keep, Trevor worked on the moor where Mr Middlemiss had moor rights. |
| But I worked on eight seasons of The Simpsons, and we certainly had our lowbrow jokes. |
| He seems to have worked on road gangs for a time and in a shoe repair factory before rheumatism forced him to quit. |
| In astronomy he worked on making observations more precise by improving astronomical instruments. |
