"I did revise… it just didn't go in." Sound familiar? What about "I turned over the exam paper and my mind just went blank…" It's worrying to feel like everything you're doing to prepare for an exam ...

“Canst thou not minister to a mind diseased,” Macbeth prayed. “Pluck from the memory a rooted sorrow /Raze out the written ...

Polynomial equations are a cornerstone of modern science, providing a mathematical basis for celestial mechanics, computer graphics, market growth predictions and much more. But although most high ...