How to Determine Day of the Week for Any Year

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How to Brush Up on Your Maths Skill

I know you don’t want to admit it, but you love mathematics, isn’t it? 😛 Of course you want to be in the best shape possible to prepare for the long battle. You try to solve a few equations an realize in horror that all those hours watching anime have drained your brain! Fear not, let the butterfly help you! Continue reading “How to Brush Up on Your Maths Skill”