The Museum of HP Calculators

HP Forum Archive 11

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Re. Most useless function
Message #1 Posted by John Mosand on 18 Mar 2003, 2:38 a.m.

One contributor felt that 'grad' was questionable. 'Grads' (400 deg) has been standard for surveying in many countries for a long time, as evidenced by e.g. the many slide rules with 400 deg trig scales.

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