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+--- Thread: Length of belt (/thread-2789.html)
Length of belt - ggauny@live.fr - 01-03-2015 07:06 PM
For the son of my daugther, who is studying elementari trigonometric calculus, at low school (not hight school), length of belt with 2 pulleys, i said do this :
L=Pi(D2)+(D2-D1)(TAN(#)-#) where #=ACOS(D2-D1)/(2C). This formula was edited in HP journal of NOV 1976 about HP 91. Yes i am not "new in box". my first HP is HP 25 not c. I give my hello to Master mister Horn, i have learned with profit "one-minute marvels" and else.