A Point of View: Mary, queen of maths

Lisa Jardine:

The request caught the attention of Dr Mary Cartwright, lecturer in mathematics at Girton College Cambridge. She was already working on similar “very objectionable-looking differential equations” (as she later described them).
She brought the request to the attention of her long-term colleague at Trinity College, Professor JE Littlewood and suggested that they combine forces. In a memoir written later in her life, she explained that he already had the necessary experience in dynamics, having worked on the trajectories of anti-aircraft guns during World War I.