Workplace & School

Reference tables
Reference tables
Before the affordable electronic calculator, we used tables to look up natural logarithms and
trigonometric values, and to compute compound interest, loan amortization, annuities, and so on.

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Posted by chrisbroz at 5:13 pm (PDT) on Wed October 21, 2015   
Same for memorizing your 'times tables'...used to be a pencil box when I was a kid with a sliding whiyte plastic 'indicator that gave you the answers...kinda like a kiddie slide rule...weren't allowed to have 'em in school during a test...

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