Greg Ferro - Work to Live

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Schoolboy Memories - Casio FX100

Saw this photo and was instantly transported to high school Maths class. At the start of the Senior school, I wondered what all those buttons and functions were for and couldn’t wait to find out.

Twenty years later, I can’t remember what they are for but I figure I could read about them and work out what they did. I havent used COS/SIN/TAN since University.