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Ian Duff
A retired mathematics lecturer, I've long had an interest in devising short problems not requiring anything beyond clear thought and basic mathematics for their solution. Over my working life and b...voir plusA retired mathematics lecturer, I've long had an interest in devising short problems not requiring anything beyond clear thought and basic mathematics for their solution. Over my working life and beyond, I've assembled two large folders of miscellaneous topics and techniques, a fruitful source of such problems.
On a more sombre note, since retirement I've produced a website commemorating the loss of a family member in northern France towards the end of WWII.voir moins
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