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Izzard, Robert Dr (Maths & Physics) authoredchanged F to |F| in discs ... let's see if it works :)
Izzard, Robert Dr (Maths & Physics) authoredchanged F to |F| in discs ... let's see if it works :)
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changed F to |F| in discs ... let's see if it works :)
changed F to |F| in discs ... let's see if it works :)